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If a problem occurs when you are using email, you may get an error message or error code which tells you the cause of the problem. For example, the image below shows what could happen when using Outlook Express. The error code given in the example is shown as 'Error number 0x800CCC79'.

If your error code matches any of those below then click on the link to read how to rectify the problem or you can use our email trouble shooting wizard (compatible with Microsoft Outlook 2003 to 2010, Outlook Express and Windows Live Mail):

Outlook & Outlook Express error messages

 0x800CCC79 - Recipient not authorised / Unknown local user 
 0x800CCC0D - Cannot locate server 
 0x800CCC0F - Connection dropped 
 0x800CCC0E - Cannot connect to server 
 0x800CCC18 - Logon attempt failed 
 0x800CCC19 - Operation timed out 
 0x800CCC90 - Client response invalid 
 0x800CCC91 - POP3 username invalid 
 0x800CCC92 - POP3 password invalid 
 0x800CCC0E or 0x800CCC0D errors 
 Can I correct the 553 error message I'm getting when I try sending from Outlook 2003? 
 How to verify email addresses (to avoid getting Error 553 when sending email)

Other error messages

 What does it mean if I see the message 'Server Error 500'? 
 I'm getting 'server rejected the sender's email address' error 
 Troubleshooting other problems and errors for email

Further information

If you're having problems setting up your BT Yahoo! email address with Microsoft Outlook, Outlook Express or Windows Live Mail you can use our email set-up wizard to do this automatically:

 Use our email set-up wizard

Easy tips and solutions to help you resolve problems with your email.

Are you having problems sending or receiving emails? Try following the guidance below to help you fix any issues you have.

Client set-up

If you're having problems setting up your email client, or you've set it up but have problems with it, you can check out our guides for the most popular clients.

See: Setting up email with different email programs.

Server settings

If you're using a client that we don't have set-up guides for, you'll find the server settings you need by clicking here.

Username & password

Please click here if you've forgotton your username or password.

You can login to webmail at http://www.talktalk.co.uk/mail

If you're having trouble logging in to the new email in your web browser, please make sure you've tried all of these options:

• Double-check your password. Is the Caps Lock key on?
• Reset your password. In some cases, login problems can be resolved by resetting the password After you reset your password, wait 5 minutes to make sure the new password is enabled, and then login again.
• Try webmail and an email client. If you're having trouble with Outlook, try logging in to webmail. If webmail is giving you problems, try Outlook, Windows Live Mail, Thunderbird, or another email client.  How to connect with an email client
• Typed the wrong password too often? To prevent security issues, your account will temporarily lock if you type the wrong password too many times. Wait one hour, then try logging in again.
• Is your billing up to date? If there is a problem with the billing information for your broadband account, you may have trouble logging into webmail.
• Update your browser: Make sure you are using the latest version of your web browser. For more information on updating your web browser, please see - Upgrade to a supported web browser
• Did you see an error? If you see an error message when trying to login, write it down before contacting customer support.

What to do if JavaScript is not enabled

You need to use a JavaScript-enabled browser to log into webmail. If JavaScript is disabled, you may see a message like this:

To enable JavaScript, follow the steps for your browser below.

Internet Explorer

You can enable JavaScript by lowering your security settings to Medium. To do this, follow the steps below in Internet Explorer:

1. At the top of the screen, click Tools and select Internet Options.
2. Select the Security tab.
3. Click the Custom Level... button.
4. In the Reset to box, change the setting to Medium as indicated in the image below.
   
   
5. Click Reset and click Yes.

Now, close Internet Explorer and open it again. Try to log into webmail.

Firefox

To enable JavaScript in Firefox, follow the steps below:

1. Click Tools and select Options.
2. Select Content.
3. Tick .
4. Click OK.

Now, close Firefox and open it again. Try to log into webmail at http://www.talktalk.co.uk/mail.

If you can't send email, your email program may display an error message containing "error code 550" or "error code 0x800CCC79". It may also say "Recipient Not Authorised" or "Unknown Local User". There are three main reasons for receiving these error messages, please see below for the appropriate solution:

Authentication failure

If you are trying to send email from and to a valid email address and you receive an Error 550 message then the first thing to check is that your email program is set up for SMTP authentication.

To protect our email server from abuse by spammers, we only allow our own customers to use it. We do this by insisting that all emails sent through BT Yahoo! have SMTP authentication to prove where they came from. The link below will help you with this problem:

Sending from an invalid address

If you are trying to send email from an invalid email address you'll get an Error 550 message saying: "Server Response: '550 Recipient Not Authorised [recipient rejected due to no authorised destination groups]".

So if the address you are sending from does not appear to be valid, our server will not send the email. Please check the following: 

• The address you are sending from was spelled correctly when you set up your mail account, you may find the link below can help you:
  
   Read an introduction to setting up email
• It is at least 24 hours since the email address was created (this is because it may take our system up to a day to activate a new address).

Sending to an invalid address

If the address you are sending from is valid, then there may be a problem with the address you are sending to.

If you are trying to send an email to an invalid @btinternet.com or @btopenworld.com email address then you'll get an Error 550 message saying: "Server Response: '550 unknown local user".

Alternatively, if you are trying to send an email to a different mail server (to an email address that does not contain @btinternet or @btopenworld) then you may receive a "Delivery Status Notification (Failure)" email from the destination mail server.

Please check the following: 

• The address you are sending to is spelled correctly.
• There are no service problems with the destination mail server.

Further information

If you're having problems with your emails or your're receiving error messages, please use the link below for further information about error messages and how to resolve them:

You can connect to your TalkTalk e-mail mailbox via a number of devices and software applications.

For instructions on how to set up your e-mail on some of the most common software applications and devices, see How do I set up my TalkTalk email?

Unfortunately we cannot provide help for all devices and software applications as they are not TalkTalk products. However, if your software application or device isn't listed, all you need to connect to your TalkTalk e-mail mailbox is the TalkTalk e-mail settings. These are listed below.

Required settings

The settings below are required from any e-mail application or device:

Email client settings

Here are the mail server settings for customers who have email addresses from TalkTalk, Tiscali, Lineone and other providers.

Note: These settings work when connecting to the internet with TalkTalk. The SMTP setting will be different if you are using another internet service provider or a mobile phone.

TalkTalk Settings

Tiscali Settings

Lineone Settings

Tinyworld Settings

Tinyonline Settings

World Online Settings

Screaming.net Settings

Gateway Settings

Optional settings

If required, here are some optional settings that you may or may not be asked:

• Incoming mail account type: POP3
• Incoming mail port: 110
• Log on using SPA: Leave unticked
• Authentication: None
• Outgoing mail port: 25
• Use SSL: Leave unticked
• IMAP: mail.talktalk.net

You can now manage all your email addresses and passwords through My Account.

Changing your email Password

Follow these simple steps to change your email password.

1. Go to the Email & Password My Account page (Can't log into My Account?)
2. Click Change password next to the relevant email address
3. Enter the new password in the New Password box and the Confirm Password box.
4. Click Confirm

The password will change immediately.

Email address does not show in My Account

If you can’t see your email address in My Account, you will need to add it by following these steps.

1. Go to the Email & Password My Account page (Can't log into My Account?)
2. Click Manage existing address.
3. Enter the first part of your email address into the box and select the relevant ending.
4. Enter the password for this email address
5. Click Submit

This address will now be visible in you’re My Account, and can be changed using the process above.

Before setting up Outlook 2010 you'll need to make sure your computer's connected to the internet. To do this, check if you can view the Orange home page. If you have problems, we suggest you fix a problem with your internet connection first.

step 1 - open Outlook 2010 and add an email account

1. From your 'Start' Menu, select Outlook 2010 - you may need to click All Programs, thenWindows Live first. 
   
   
   
   
2. Outlook 2010 will open:
   
   
   
   
3. Depending on whether you've opened Outlook 2010 on your computer profile before, you'll be presented with 1 of 2 options.

option 1 - never opened Outlook 2010 before

If you've never opened Outlook 2010 on your computer, the Microsoft Outlook 2010 Startup wizard will open.

1. Click Next:
   
   
   
   
2. Click Next again:
   
   
   

You can now go to step 2 in this article for more instructions.

option 2 - Outlook has previously been opened

If Outlook has been previously opened, you'll be take to the Outlook Home screen. To set up a new email account:

1. Select the 'File' tab, and click on Add Account:
   

You can now go to step 2 in this article for more instructions.

step 2 - enter your email settings

1. Select to 'Manually configure server settings...'
   
   
   
   
2. Select 'Internet E-mail' and click Next: 
   
    
   
   
3. Enter the details below:
   
   - Your Name: enter this as you wish it to appear on emails your send, i.e. Firstname, or Firstname Surname.
   - E-mail Address: your email address that you chose when registering to Orange, e.g.mail@yourname.orangehome.co.uk 
   - Account Type: select POP3 
   - Incoming mail server: pop.orangehome.co.uk
   - Outgoing mail server (SMTP): smtp.orangehome.co.uk
   - User Name: the account name that you chose when registering, e.g. yourname.orangehome.co.uk
   - Password: YourPassword (case sensitive) - we suggest you select 'Remember this password'
   - Remember password: we suggest you select to remember password 
   - Require login using Secure Password Authentication (SPA): don't check this option
   
    If you've previously set up Outlook, you may want your messages to be delivered to your existing inbox. You can do this in the 'Deliver new messages to' field, by selecting 'Existing Outlook Data File', then clicking on Browse and selecting the required file.
   
   
4. Click Next: 
   
   
   
   
5. Outlook will test the settings you've entered by sending and receiving a test email from your account. Once the tests are complete, you can click Close: 
   
   
   
   
6. The 'Congratulations' screen will confirm that you've successfully setup your account - click Finish:
   
   
   
   
7. You'll be taken to your Outlook 2010 inbox, where any new mails sent to your account will download to your inbox:
   
   
   

step 3 - check your email account is working

If you'd like to double-check your email account is working, try sending yourself a message? To do this:

1. Select the 'Home' tab, and then click Email message: 
   
   
   
2. Type your email address in the 'To:' field.
3. Type a message subject and quick message:
   
   
   
   
4. Click Send: 
   
   
   
   
5. Wait a few moments, then click Send/Receive: 
   
   
   
6. Your message will download into your inbox:
   
   
   

That's it - Outlook 2010 is now set up to receive your Orange emails.

This article will show you how to set up Windows Live Mail 2011 to allow you to use your Orange email service.

Before setting up Windows Live Mail, you'll need to make sure your computer's connected to the internet. To do this, check if you can view the Orange home page. If you have problems, we suggest you fix a problem with your internet connection first.

step 1 - open Windows Live Mail and add an email account

1. From your 'Start' Menu, select Windows Live Mail - you may need to click All Programs, thenWindows Live first. 
   
2. Windows Live Mail will open:
   
   
3. If this is the first time you've set up Windows Live Mail, the 'Add e-mail account screen' will open - move to step 2.
4. If not, select the 'Accounts' tab, and click on Email:
   
   
   

step 2 - enter your email settings

1. Enter the details below:
   
   - Email Address: your email address that you chose when registering to Orange, eg mail@yourname.orangehome.co.uk 
   - Password: YourPassword (case sensitive) - we suggest you select 'Remember this password'
   - Display name: your name, as you wish it to appear on message you send
   
   
2. Click Next: 
   
   
3. Enter the settings below in the 'incoming server information' field: 
   
   - Server type: select POP3
   - Server address: pop.orangehome.co.uk
   - Port: 110
   - Requires a secure connection (SSL): don't check this option
   - Login ID : your account name that you chose when registering, eg yourname.orangehome.co.uk.
   - Authenticate using: clear text 
   
   
4. Enter the settings below in the 'outgoing server information' field: 
   
   - Outgoing server: smtp.orangehome.co.uk
   - Port: 25
   - Requires a secure connection (SSL): don't check this option
   - Requires authentication: don't check this option. 
   
   
5. Click Next: 
   
   
6. Click Finish: 
   
7. Any new mails sent to your account will download to your inbox:
   
   
   

step 3 - check your email account is working

Why not check that your new mail address is working by sending yourself a message? To do this:

1. Select the 'Home' tab, and then click Email message:
   
   
   
2. Type your email address in the 'To:' field.
3. Type a message subject and quick message:
   
   
   
4. Click Send: 
   
   
   
   
5. Wait a few moments, then click Send/Receive: 
   
   
   
6. Your message will download into your inbox:
   
   
   

That's it - Windows Live Mail is now set up to receive your Orange emails.

There are several ways of getting to your webmail:

• You can preview your mail inbox on your BT Yahoo! homepage at bt.yahoo.com, using the BT Yahoo! Mail Preview module
• Go to the BT Yahoo! homepage at bt.yahoo.com and click on the Mail icon near the top right of the page
• Go directly to bt.yahoo.com/webmail, or use the link below:

   Sign in to BT Yahoo! Webmail

  Please note: You will need your username and password to use webmail. If you've forgotten these, use the link below: 
  
   I've forgotten my BT Yahoo! username or password

Further information

If you're having problems with your emails or your're receiving error messages, please use the link below for further information about error messages and how to resolve them:

 Email problems: using the error code to help fix a fault

Sub-accounts are extra email addresses, included at no extra cost to you. You can create up to ten sub-accounts.

You can give each sub-account its own parental controls access level, so each family member is safe.

Only the main account holder can create extra accounts. Follow these steps to add an account (or watch the video below):

1. Go to www.bt.yahoo.com (opens in new window)
2. Enter your main email address and password and click Sign In
3. Click on My Account
4. Click on Manage Sub Accounts in the list of quick links or the My Account & Billing tab at the top of the screen.

   

5. You'll be asked to enter your email password again. Enter the password and click Continue
6. Scroll down and click on Create New Sub-account button. If the button isn't there, it means you've already reached your maximum number of sub-accounts.

   

7. Fill in the form and then click on Create Sub Account. You'll be told if the username you've chosen is already in use. When choosing your username try to be imaginative, perhaps adding a number at the end that you would easily remember
8. The page that now appears will show the new account and give you the option to set up parental controls for this sub-account.

Watch our video on how to create a new email address by setting up a new sub-account:

Can I take the email address from my sub-account and use it to set up a new primary account?

Yes. You may want to do this, for example, if your email address was given to you by a parent on their primary account and you're now about to leave the family home. You can set up your own BT access account at your new home and take your existing email address with you.

 Find out the difference between primary and sub-accounts

To upgrade your sub-account to a primary account just use the link below to contact the Technical Help Desk.

 Contact the Technical Help Desk

We'll be able to set you up with a new access product (such as a Pay-as-you-go account) and switch your email address to that. We can also send you an installation disk so you can run the reinstall program, which will guide you through setting up.

If you want a broadband account you can set up a new Pay-as-you-go account as above and thenupgrade to a broadband access product.

To keep your email address, tick "Yes" when asked "Do you have a BT email address?"

 

Further information

 I've forgotten the password or username for a sub-account 
 Setting up email with different email programs

"Webmail" or "Web-based email" means that your BT Yahoo! Mail account is actually a website, providing easy access to your email from any computer in the world.

Once you've connected to the Internet, you can simply visit www.bt.yahoo.com/webmail and sign in to access your email account.

"Client-based email" refers to email sent and received using a program on your computer (such as Outlook Express, Outlook or Eudora). In this case once you have downloaded messages into the inbox of your email program they are stored locally on your computer. This means you can still read them easily even if your computer is not connected to the Internet.

When you registered for either broadband or a dial-up Internet account from BT, or signed up for BT Yahoo! Premium Mail, you'll have reserved a primary email address during the registration process. For example: joe.bloggs@btinternet.com.

This primary email address is also your primary username and is used for signing in to your broadband or dial-up service and also for signing in to the BT Yahoo! site in order to read web mail.

Your email account will be activated by midnight on the day of your broadband activation. After activation, you can simply use the link below and login with the email address and password you set up during registration.

 Sign in to BT Yahoo! Webmail

Please note: You will need your username and password to set up your email client or to use webmail. If you've forgotten these, use the link below: 

 I've forgotten my BT Yahoo! username or password

Alternatively, you can use an email program such as Outlook Express or Outlook (these are two different programs) or another email client such as MacMail, Mozilla Thunderbird or Windows Mail which allow you to download your emails to your computer. Click the button below for step-by-step instructions for different programs. For some email programs, like Microsoft Outlook and Windows Live, we'll even show you how to run an automatic set-up.

If your email program isn't listed in the guide, please use the link below to get the incoming and outgoing server information you'll need.

 What are the BT Yahoo! Mail settings for outgoing and incoming mail servers?

Further information

You should be careful where you enter and give out your email address however you can still receive spam emails without even exposing your address, as it's common for spammers to guess valid email addresses.

Never reply to a spammer or send a 'remove from mailing list' request. This only confirms that your address is valid, and you'll probably get even more spam.

BT Yahoo! Mail and BT Yahoo! Premium Mail includes tools to help you stop unwanted emails. For example, SpamGuard sends spam email directly to the Bulk folder and can block them in future.

Other tools include:

• Filters - automatically sorts incoming messages to different folders
• Block Addresses - stops email from particular email addresses or domains that you select
• Image Blocking - prevents spammers from knowing you opened their email, and protects you from viewing images you don't want to see

How to use SpamGuard

1. If you receive a spam email use SpamGuard by highlighting the message and clicking on Spam.

   

2. If SpamGuard has blocked a message that isn't spam, you can tell it by clicking the Not Spambutton.
3. If the email you marked as 'Not Spam' doesn't appear back in your inbox, click on Options on the top right-hand side of the window. Click on Spam Protection then tick the box that allows messages highlighted as 'not spam' to be automatically moved to the inbox.

For more information, visit the BT Yahoo! Anti-Spam Resource Centre:

Further information

 What is spam? 
 How did I get on a spam list? 
 How do I filter bulk or spam messages using Outlook Express? 
 Does SpamGuard work if I use an email program? 

Advice and links to help you answer your questions about setting up and using email.

Trouble sending mail?

As part of ongoing security enhancements to BT Yahoo! Mail we're upgrading our security to prevent emails from being sent from client applications (Microsoft Outlook, Thunderbird etc) when the "From" email address is not either a BT Yahoo! email address or a validated alternative email address. If you see an error 553 message you'll need to validate the email address that you want to send from, please see our step by step instructions to fix your email

Can I easily switch my email accounts to BT Yahoo! Mail?

Move all your messages, contacts and calendars to BT Yahoo! Mail using the free BT Yahoo! TrueSwitch service

How do I set up Outlook Express (or another email program) to access my email?

Learn how to set up different email programs to access your BT Yahoo! Mail or click here to use our wizard that will do this automatically for you

SMTP authentication - what is it and why do I need to set it up?

'SMTP server authentication' identifies you as a genuine user of our email service and prevents anonymous users sending spam. It's easy to set up - manually or automatically.

How to set up SMTP authentication

I've forgotten my username/ password

Get help for all username/password issues at www.bt.com/help/passwords

I want a different email address

Although you can't change your primary email address (the one you use to log in to broadband or dial-up) you can use sub-accounts to set up alternative email addresses, either for yourself or someone else.

How to set up a sub-account.

What are sub-accounts?

I want to access my email while I'm travelling

You can access your email from anywhere in the world via webmail.

Go straight to webmail now (you'll need to login with your username and password)

I alternate between Outlook Express and webmail to see my emails. But when I go to webmail, some of the emails in my inbox have disappeared.

You need to configure your email program so that when downloading emails it still leaves copies on the server for viewing via webmail.

How to prevent your email program from emptying your webmail inbox

Help! I am getting loads of spam (unsolicited emails).

What can I do about spam?

You can access your BT Yahoo! Mail account from anywhere, at any time. Just go towww.bt.yahoo.com/mail and log in using your username and password.

You can also set up an email program (sometimes called an email 'client' or 'application') so that your emails are delivered directly to your computer. You can then read email from the program's inbox without having to log in or go online. Popular email programs include Outlook Express, Microsoft Outlook and Thunderbird.

Setting up an email program to receive your BT Yahoo! Mail is quick and easy. Click the button below for step-by-step instructions for different programs. For some email programs, like Microsoft Outlook and Windows Live, we'll even show you how to run an automatic set-up.

If your email program isn't listed in the guide, please use the link below to get the incoming and outgoing server information you'll need.

 What are the BT Yahoo! Mail settings for outgoing and incoming mail servers?

Forgotten your email username or password?

You'll need your username and password to set up your email program with BT Yahoo! Mail. If you've forgotten these, use the links below:

You can verify up to ten email addresses for each primary and secondary account that you hold - that is for each email address ending in btinternet.com, btopenworld.com or talk21.com. A secondary email address is also known as a sub-account.

To verify more than ten email addresses, set up one or more new sub-accounts. Depending on your dial-up or broadband option, you will have four or ten sub-accounts available to use. You can then verify up to ten email addresses per sub-account.

So, if you're primary email is john.smith@btinternet.com, and you've already verified ten email addresses against this, but still need to verify other accounts - for example john@smith.com) - you can create a new sub-account such as john.smith2@btinternet.com. You can then verify another ten email addresses against this sub-account.

When you stop your BT Broadband service your email account is downgraded to a Pay-as-you-go or Basic email service. You'll be able to access your email account for up to 90 days from the date your BT Broadband service stops.

You won't be charged for the email account, but to continue to use it after 90 days you'll need to upgrade it to a Premium Mail account.

To upgrade, please visit: www.bt.com/premiummail.

You can keep your password more secure by changing it regularly.

To change your password:

• Go to www.bt.yahoo.com
• Log in as normal.
• Click on My Account in the top right corner.
• Click on Change My Password in the 'Quick Links' menu. (This will open up a new window.)
• Enter your current password and then your new password. You'll have to enter your new password twice to confirm.
• Click Next and close the window.

You have now changed your password.

Find out more about keeping your password secure

Yes, because BT Yahoo! Mail is on the web, you can access your email account from any internet connection, such as an Internet café or a wireless hotspot.

Log in to your email at www.bt.yahoo.com/webmail using your btinternet email address and password.

Normally, contents of your Bulk or Spam mail folder will not automatically appear when you check your mail using an email program. By default, the option to do this is turned off, and messages caught by SpamGuard can only be seen via webmail. 

Please note that bulk and spam mail will remain in your Bulk or Spam mail folder and will count against your storage quota, unless you visit webmail and delete them yourself. 

You can also choose how long you want to keep messages in your Bulk or Spam mail folder. 

If you prefer to download the contents of your Bulk or Spam mail folder in addition to your inbox follow the instructions below:

For Mail Classic

• Use the link below and login with your email address and password.
   Sign in to BT Yahoo! Webmail
• Click on "Mail Options" near the top right
• Click on "Pop Access and Forwarding", and check the box next to "I want to receive all messages, including those that SpamGuard thinks are spam"
• Optionally you can select "For messages that SpamGuard thinks are spam, add [Bulk] as a prefix to the subject". This will help you to manage your bulk mail using your email program.
   How do I filter bulk or spam messages using Outlook Express?

For the all-new Yahoo! mail

• Use the link below and login with your email address and password.
   Sign in to BT Yahoo! Webmail
• Click on "Options"
• Click on "Mail options" in the drop-down menu
• Click on "POP & Forwarding" on the left-hand side
• Click "Set up or edit POP & Forwarding" and check the box next to "I want to receive all messages, including those that SpamGuard thinks are spam"

Further information

 What is spam? 
 How can I stop spam emails? 
 How did I get on a spam list? 

If you buy a new computer, or even if you just buy a new hard drive or reformat your old hard drive, you will probably want to keep your email messages and your contacts list or address book from your email client and your bookmarks or favourites from your web browser. Click on the relevant link below to do this:

• Transferring my email messages and address book (Outlook Express)

Note, if you only use Webmail then you can log on with your new computer without transferring any files first.

• Transferring my Favourites (Internet Explorer)
• Transferring my Favourites (BT Yahoo! browser)

To use an email program to send and receive BT Yahoo! Mail messages, you must designate a new incoming (POP) mail server and a new outgoing (SMTP) mail server.

If your program won't let you add new POP or SMTP servers, you'll need to change your current server settings.

Basic server settings for BT Yahoo! Mail:

Incoming Mail (POP3) Server - mail.btinternet.com 
Port (usually specified in 'Advanced settings') - 110

Outgoing Mail (SMTP) Server - mail.btinternet.com 
Port (usually specified in 'Advanced Settings') - 25

Account Name/Login Name - Your email address (including the "@btinternet.com" or "@btopenworld.com" part) 
Password - Your BT Yahoo! password

Please note: if your client does not support SMTP authentication, you will not be able to use it to send your BT Yahoo! Mail messages.

Further information

 What is the difference between using an email application and web-based email? 
 An introduction to setting up email 
 Setting up email with different email programs

Yes.

For example, if you have your own email domain or an email address with your previous Internet Service Provider, you can still configure Outlook Express (or other email program) to send and receive emails using that account.

However, it's important to configure your non-BT Yahoo! account settings correctly, because - as part of the fight against spam emails - we're introducing SMTP authentication. Even if you've been able to send and receive emails on your non-BT Yahoo! account without difficulty so far, you'll need to configure your program's settings.

What you need to do

1. Configure your non-BT Yahoo! account as follows: 
   
   
   1. From the 'Tools' menu in Outlook Express, choose 'Accounts' and select the 'Mail' tab
   2. Double-click on the non-BT Yahoo! account you wish to configure
   3. Select the 'Servers' tab
   4. Place a tick in the "My server requires authentication" check box and click on the Settings button next to it.
   5. Select the 'Log on using' option and enter your BT Yahoo! Mail account username and password. Check the 'Remember password' option, but leave 'Log on using secure authentication' blank. Click OK, and OK again, followed by Close.

   You'll need to make these changes on all non-BT Yahoo! email accounts you wish to access using your email program via your BT Yahoo! connection.

   You'll also need to repeat these steps on any other computer you may use to check your non-BT Yahoo! email account.

2. Check that your normal BT Yahoo! email address (ending in "@btinternet.com" or "@btopenworld.com") is correctly configured in your email program. This will ensure you'll receive any future communication from us which may affect your email service.

If you have tried resetting your BT Yahoo / Email password (for example because you've forgotten it), but it didn't work:

1. Please check that you have entered the security information exactly as you entered it the first time; for example, did you enter your mother's maiden name as 'jones' or 'Jones'?



2. You may have attempted to enter the information more than three times. For security reasons, your session is terminated after three failed attempts. If so, please contact us.



3. Your account may have been suspended due to credit card details having expired or (if you are on pay-as-you-go) because you have not connected for 90 days. If so, please contact us.

 Try resetting your password again

Forgotten password

You chose a password when you first registered for internet access from BT. If you've forgotten it, or you want to change it, you can use the link below to change the password online:

 Reset your password online

The password for your email account is case sensitive. When choosing your new password you should make sure that:

• Your password is between 8 and 16 characters long
• Your password contains at least 1 number
• Your password contains no punctuation or spaces
• Your password is not the same as your username

If you're a new broadband customer, you might not be able to access your email address until after 8pm on the day your service is activated. If you're not sure when your service will be activated you can use our Order Tracking service to check the details of your order.

Watch our video on resetting your password

If your computer cannot connect to the email server, or you lose connection, you'll receive an error message with one of the following error codes:

• 0x800CCC0D  CANT_FIND_HOST  Cannot locate server
• 0x800CCC0F  CONNECTION_DROPPED  Connection closed

If you get either of these errors, you can use out Email Troubleshooting Wizard to try and resolve these problems:

Alternatively you can carry out the following checks to help resolve the problem. First check that the problem is not a temporary fault affecting BT's mail servers. To do this you should visit the BT Broadband Service Status page using the link below:

 Check online for broadband service problems in your area 
 Call our broadband service status line on Freephone 0800 169 0199

If there are no reported problems on the Service Status pages, you will need to check that your email settings are correct:

 Read an introduction to setting up email

Once you have done this, you should check the settings of any anti-virus or firewall software on your computer (Norton Anti-Virus, Zone Alarm or similar).

You need to configure your firewall/anti-virus software to allow access to the following files:

• For Outlook Express: Msimn.exe
• For Outlook: Outlook.exe

If this problem continues, please refer to the supplier of your anti-virus or firewall software.

Further information

If you're having other problems with your emails or your're receiving error messages, please use the links below for further information about error messages and how to resolve them:

If you receive Error 0x800CCC18 SICILY_LOGON_FAILED, this means that your log on attempt has failed.

A common cause for this error is Secure Password Authentication. Please contact the Technical Helpdesk using the link below so they can look into this for you.

In the meantime, you can use the webmail service for your email account to read and access your emails:

 Sign in to BT Yahoo! Webmail

Please note: You will need your username and password to use webmail. If you've forgotten these, use the link below: 

 I've forgotten my BT Yahoo! username or password

Further information

 More information about accessing webmail 
 Email problems: using the error code to help fix a fault

This error is usually caused by the username or password being entered incorrectly.

Check your email settings, making sure that the POP3 and SMTP servers, and your full username and password are all correct.

If you are still having problems, it could be that your password has somehow become corrupted. You can try changing your password to resolve this:

Further information

If you're having problems with your emails or your're receiving error messages, please use the link below for further information about error messages and how to resolve them:

This error is usually caused by a username or password being entered incorrectly. Use the link below for more information about setting up email clients to manage your BT Yahoo! email account: 

 An introduction to setting up email

Further information

 Email problems: using the error code to help fix a fault

This error is usually caused due to your account name or password being entered incorrectly. To resolve this error please follow the instructions below:

1. Launch Outlook Express
2. Once open please click on Tools
3. Click on Accounts
4. Select the Mail Tab
5. Highlight the relevant account - once highlighted blue, please click on the Properties button
6. Click on the Servers Tab

   6a. Under the section labelled Incoming Mail Server please check you've entered your username in the text box labelled Account Name:, in lowercase.

   6b. Please check you've entered the correct password in the box labelled Password:. Make sure that the Remember Password box has been ticked.

   6c. Please ensure that the following two boxes are not selected:
   Log on using Secure Password Authentication
   My server requires authentication

7. Click on the Apply button and then the OK button
8. Click on Close to return to the main screen of Outlook Express.

Further information

If you're having other problems with your emails or your're receiving error messages, please use the link below for further information about error messages and how to resolve them:

Outlook Express 6 contains a virus protection function which, when enabled, will stop you opening attachments or saving them to disk. To disable this function so you can open attachments, follow these steps: 

• Click on the Tools menu option in Outlook Express
• Select the Options item from the menu
• Click on the Security tab
• Under the virus protection section of the screen, you will see the option entitled: "Do not allow attachments that could be saved or opened that could potentially be a virus". Untick the box to change the settings.
• Click Apply followed by OK

Please find here a step-by-step guide to repairing a corrupt inbox or outbox.

Remember: When you repair Outlook Express folders, all the original folder content is lost.

Follow the instructions below:

1. Shut down Outlook Express
2. Click [Start]
3. Select Find
4. Select Files or Folders
5. Enter the name of the corrupt folder. For example, inbox.dbx
6. Click [Search]
7. When search has found the folder, right-click on it and select rename
8. Call it inbox.old (where inbox is the original folder name)

• inbox.dbx
• outbox.dbx
• sent*items.dbx
• deleted*items.dbx
• drafts.dbx

Further information

 Troubleshooting other problems and errors for email 
 Email problems: using the error code to help fix a fault 

If you are having problems with your Outlook 2003 to 2010, Outlook Express or Windows Mail email client you can use our troubleshooting wizard to fix many common problems. 
 Email troubleshooting wizard

If Outlook Express will not load from within a web browser when you click on an email link, it may not be set up correctly. Follow the procedure below to set up Outlook Express: 
(You will need to restart your computer when you have finished, so please make sure you have saved any work before proceeding.)

1. Shut down Internet Explorer
2. Click the main Windows [Start] button on your desktop
3. Select Run and type: msimn.exe / reg
4. Click [OK]
5. If Outlook Express starts up, close it (by clicking the [X], top right).
6. Restart your computer.

Further information

 Troubleshooting other problems and errors for email 
 Email problems: using the error code to help fix a fault 

If you are having problems with your Outlook 2003 to 2010, Outlook Express or Windows Mail email client you can use our troubleshooting wizard to fix many common problems. 
 Email troubleshooting wizard

Follow the step-by-step instructions here to display all your messages.

1. Start Outlook Express.
2. Click on the inbox.
3. Click [View].
4. Select Current View.
5. Make sure that Show all messages is selected.

The maximum email size is set at 25MB for your BT Yahoo! email account. However, you may find it hard to send attachments that are larger than about 20MB as attachments must be encoded so that other email programs can read them. Encoding attachments can add about 33% to their original size. So a 1.5MB attachment would be roughly 2MB after encoding.

If you need to send large files you can try these alternatives:

Zip up your files before you email them

Single or multiple files can be compressed with utility programs such as WinZip or Stuffit. Depending on the file, you can often reduce the file size a great deal.

Transferring files online

Using an online backup and storage site like BT Digital Vault is an easy way to share extremely large files - up to 1Gb - with your family and friends. BT Total Broadband customers can set up a free BT Digital Vault account to start sharing files online at no additional cost.

Sign-up to BT Digital Vault now.

Other services and tools

There are a variety of other services and tools that allow you to transfer extremely large files, up to 1Gb. Do a search on the web and you should be able to find one for free.

Your mail client is unable to connect to your mail server.

If your connection to the internet is okay, and you can surf the web as normal, you should first check that the problem is not a temporary fault affecting BT's mail servers. To do this you should visit the BT Broadband Service Status page using the link below:

 Check online for broadband service problems in your area 
 Call our broadband service status line on Freephone 0800 169 0199

If there are general problems with the network in your area, this may be preventing you from using our services as normal.

If there are no reported problems with the service status in your area then the most likely cuplrit is the set up of the account details in your email client. You should check that your email settings are correct:

 Read an introduction to setting up email

Further information

If you're having other problems with your emails or your're receiving error messages, please use the link below for further information about error messages and how to resolve them:

You may get this error when trying to download an email. It means that your email program waited so long for a response from BT's mail server that it gave up, or 'timed out'.

If your connection to the Internet is OK, and you can surf the web as normal, you should first check that the problem is not a temporary fault affecting BT's mail servers. To do this you should visit the BT Broadband Service Status page using the link below:

 Check online for broadband service problems in your area 
 Call our broadband service status line on Freephone 0800 169 0199

If there are no reported problems on the Service Status pages, please follow the checks below:

• Check your email program for corrupted files
• Check for messages that may be 'clogging up' your inbox
• How to 'unclog' your inbox
• Check your anti-virus and firewall software

Check your email program for corrupted files

The error may be due to a fault with your email program, particularly the file that keeps track of which emails you have downloaded, which can become corrupted. You might be able to fix this by carrying out the following steps:

• Disconnect from the Internet and close all programs.
• Search for the file pop3uidl (this is your cached mail file) and delete it.
• Restart your computer.
• Try to send/receive email again.

Check for messages that may be 'clogging up' your inbox

You may have a large email waiting for you on the mail server that is taking too long to download. Outlook Express and other mail clients do not handle large emails well (usually this means emails with large attached files), and often interpret the long connection time as 'inactive', even though you are downloading emails. A corrupted email in your inbox on the mail server can have the same effect.

This might be happening if:

• It takes a long time downloading an email
• You are being repeatedly cut off before getting any mail, and then getting the first few messages repeatedly.
• You have a large number of emails waiting to be downloaded.

How to 'unclog' your inbox

First log into your mailbox via our Webmail page. Read all of your new email messages there and then delete them (if you need to keep any of the content you may wish to copy the text and paste it into a word processor document on your computer as a record). Now you can leave webmail and return to using your regular email program - with whichever message that was "clogging" up your inbox now gone you should be able to download any new emails as normal.

Note: if the clog was caused by someone sending you a large file attachment you may want to contact them to discuss ways of avoiding the problem in future. The link below will give you information about transferring large files.

Check your anti-virus and firewall software

If you have anti-virus or firewall software on your computer, and it is not installed or set up correctly, it may be preventing your email program from accessing our mail server. Please make sure that any such software is set up to allow access to msimn.exe (for Outlook Express) or outlook.exe(for Outlook). For further advice on this, please contact the manufacturer of the anti-virus or firewall software you are using.

Further information

If you're having other problems with your emails or your're receiving error messages, please use the link below for further information about error messages and how to resolve them:

For security reasons, the BT Yahoo! Mail servers require password authentication for both incoming and outgoing mail.

If you wish the authentication to take place automatically, you will need to make the following changes to the configuration of your Outlook Express email account:

1. Open Outlook Express, select the Tools menu, then Accounts
2. Select the account you wish to change and click Properties
3. Click the Servers tab at the top
4. In the Incoming Mail Server section, check Remember password and enter your password
5. In the Outgoing Mail Server section, check My server requires authentication, then click Settingsand select Use same settings as my incoming mail server
6. Click OK to close the Settings window, then click Apply to make the changes
7. Close the Properties window

If your connection to the Internet is OK, and you can surf the web as normal, you should firstcheck that the problem is not a temporary network fault.

If your server times out while you are sending and receiving mail, it could be because of the timeout period.

PC users using Outlook Express can set the server timeout period - please ensure that this is set tofour minutes and 30 seconds.

Mac users with Outlook Express cannot change the server timeout settings.

Time-outs could also occur for one of two reasons:

Option 1 - You could have a corruption of the pop3uidl file.

You should disconnect from the Internet and close all programs.

The tick box Leave a copy of messages on server may have been activated.

If you disable the Leave a copy of messages on server option, two things happen the next time you connect to your POP3 server:

• Mail that has been stored is deleted.
• The information in the Pop3uidl.dat/.dbx file is cleared, and the file is reset to its default size of 312 bytes.

1. Open Outlook Express
2. Click Tools
3. Select Accounts
4. Select Mail tab
5. Highlight the relevant account and click Properties
6. Select Advanced tab
7. Within the section Delivery, remove the tick from the box labelled Leave a copy of messages on server
8. Click Apply
9. Click OK (You can repeat this process for any other accounts showing within the Mail tab, once this has been completed.)
10. Click Close

Please note: 
You must exit Outlook Express and then restart for the changes to take effect.

Option 2 - You may also have a corrupt or a very large file attachment on the mail server.

There could be mail queued on the server and you have to remove the mail that is causing a problem.

You may need to contact us about this. If you do need to contact us please tell us the time when you last tried to download or delete email. You must wait for at least 20 minutes from the last attempt for the mailbox to reset itself.

Make sure that you have closed any application attempting to access your email (Outlook Express) before continuing.

This is a message from the BT Yahoo! Mail server. Usually it's only about a temporary problem. If you see the message, try what you were doing a second time.

If you get the error message again, please check the Service Status to check that the problem is not a temporary fault affecting BT's mail servers. To do this you should visit the BT Broadband Service Status page using the link below:

 Check online for broadband service problems in your area 
 Call our broadband service status line on Freephone 0800 169 0199

If you're having other email problems it could be for a number of reasons. Our BT Broadband Desktop Help software can diagnose and fix email problems for you, even when you're not connected to the Internet: 

Find out more about BT Broadband Desktop Help

Note: BT Broadband Desktop Help is not available for Apple Mac users.

Further information

If you're having problems with your emails or your're receiving error messages, please use the link below for further information about error messages and how to resolve them:

This error message means that you need to enable SMTP server authentication in the email client you are using. The full error message will probably say:

"The message could not be sent because the server rejected the sender's e-mail address. The sender's e-mail address was (Email address). Subject (Subject), Account: (Account name), Server: (Server name), Protocol: SMTP, Server Response: '505 Authentication required', Port: 25, Secure(SSL): No, Server Error: 505, Error Number: 0x800CCC78"

The bold part of the above error message tells you that this feature is not enabled.

If you're using Microsoft Outlook or Outlook Express simply click the button below to enable SMTP authentication automatically (only if you are using a PC).

To learn how to set up your email account and enable SMTP server authentication in other email programs, please use the link below to select from a list of supported email clients:

If your program is not listed on the above link, you may still be able to enable SMTP authentication. However, we cannot offer instructions for setting this up on all versions of all email programs. If your email program does not support authenticated SMTP you may have trouble using it for BT Yahoo! Mail.

Further information

If you're having problems with your emails or your're receiving error messages, please use the link below for further information about error messages and how to resolve them:

There are a number of reasons why you might be having problems receiving emails.

Have you selected email forwarding within webmail?

1. Go to webmail at bt.yahoo.com/webmail and click on "Mail Options" in the upper right-hand corner of the page (if you use the all-new Yahoo! mail, then click "Options" first)
2. On POP Access and Forwarding make sure the Forwarding option is not selected

Is there a problem with your email program settings?

Make sure that you've configured your email program with these settings, watch our video guide below if you need help checking this:

Incoming Mail (POP3) Server: mail.btinternet.com

Outgoing (SMTP) Server: mail.btinternet.com

Account Name/Login Name: your full email address

Email Address: your full email address

These Outlook or Outlook Express error messages occur when your program cannot connect to the mail server for some reason.

If you haven't changed your email settings since the last time you used your email program, don't change your email settings, as the fault is quite likely to be a temporary one. Close your program and try again later.

Meanwhile you may also wish to try checking your email via webmail. Use the link below and login with the email address and password.

 Sign in to BT Yahoo! Webmail

Please note: You will need your username and password to set up your email client or to use webmail. If you've forgotten these, use the link below: 

 I've forgotten my BT Yahoo! username or password

You may also wish to check the status of our Internet and email services to check that the problem is not a temporary fault affecting BT's mail servers. To do this you should visit the BT Broadband Service Status page using the link below:

 Check online for broadband service problems in your area 
 Call our broadband service status line on Freephone 0800 169 0199

If you think you may have inadvertently changed your Outlook or Outlook Express settings, you'll need to check these settings and if necessary correct them:

 Setting up email in Outlook Express 
 Setting up BT Yahoo! Mail in Outlook 2002 or 2003 

Further information

 Email problems: using the error code to help fix a fault

If you get an error message saying "A time-out occurred while communicating with the server", it could be that you need to check your firewall's email settings. If your firewall is scanning emails, try turning this option off temporarily. If it fixes the problem, please consult your firewall supplier for further advice. 

If the error occurs when sending or receiving file attachments in Outlook Express 6, download the Internet Explorer 6 Service Pack 1 from Microsoft to fix the problem. 

Further information

 Troubleshooting other problems and errors for email 
 Email problems: using the error code to help fix a fault 

If you are having problems with your Outlook 2003 to 2010, Outlook Express or Windows Mail email client you can use our troubleshooting wizard to fix many common problems. 
 Email troubleshooting wizard

To better manage your emails in your email program, you can have the word "Bulk" automatically added to the subject line of all bulk emails. This allows you to set up your email program to automatically put Bulk Mail messages into a specific folder.

You can turn this option on by going to webmail and following these steps:

1. Click the "Mail Options" link in the upper-right of the navigation bar (or "Options", then "Mail Options" if you're using the all-new BT Yahoo! mail).
2. Select the link labeled "POP Access and Forwarding" under Management
3. Check the option: "For messages that SpamGuard thinks are spam, add [Bulk] as a prefix to the subject"
4. Click "Save Changes"

Now you need to create a Bulk Mail folder and filter in Outlook Express to deal with the messages that SpamGuard decides are junk. To do this, follow the instructions belos:

Creating the Bulk folder

1. Open your Outlook Express client and click the "File" menu
2. From the menu, select "Folder" then "New"
3. In the dialog box that comes up, enter a name for the new folder (we recommend "Bulk"), and select where in your folder list that you want the new folder. We recommend you select "Local Folders" to put it at the same level in your list as your Inbox, but some may prefer it to be a sub-folder of your Inbox. To make it a sub-folder of your Inbox, click on "Inbox" in the dialog box instead of "Local Folders"
4. Finish by clicking "OK." You now have a folder to receive the bulk messages

Creating the Rule to move Bulk messages to your Bulk folder

1. On the Outlook Express toolbar, click the "Tools" menu; select "Message Rules" then "Mail". In the dialog box that comes up, do the following (note that if you already have other rules, you'll need to click the "New..." button before continuing).
2. In the upper box titled "1. Select Conditions for your rule:" check the box labeled "Where the subject line contains specific words".
3. In the second box titled "2. Select the Actions for your rule:" check the box titled "Move it to the specified folder".
4. In the third box titled "3. Rule Description:" click on the "contains specific words" link and enter "[Bulk]" (with the brackets but without the quotes).
5. Click "Add" and then "OK"
6. In the same box, now click the "specified folder" link, and double click on the "Bulk" folder you created earlier
7. Finally, in the last box, give the rule a name and then click "OK." We recommend a simple name such as "Bulk"
8. Click "OK" again and you're done.

You now have a rule that tells Outlook Express to automatically put your bulk messages into the new Bulk folder when you receive mail.

Further information

 What is spam? 
 How can I stop spam emails? 
 How did I get on a spam list? 
 Does SpamGuard work if I use an email program? 

You can stop BT Yahoo! SpamGuard from automatically sending suspected spam messages to your Spam folder. You'll need to do it from the web version of BT Yahoo! Mail. You can't do it from within a third party email client like Outlook or Mail.

If you're using the New Mail version of BT Yahoo! Mail:

1. Login in to BT Yahoo! Mail at www.bt.yahoo.com/webmail.
2. Click Options then select Mail Options. 
   
   
   
   
3. Select Spam from the navigation menu.
4. Uncheck the box to Automatically send suspected spam to my Spam folder. 
   
   
   


5. Click Save Changes. A message will appear to confim what you've done.
   

Now any spam you receive will be delivered to your Inbox, and no new messages will go into your Spam folder. If you want to start using the Spam folder again, it's easy to turn it on by repeating the steps but this time clicking the box to turn SpamGuard back on again.

If you're using the Classic version of BT Yahoo! Mail:

1. Login in to BT Yahoo! Mail at www.bt.yahoo.com/webmail.
2. Click Options and select Mail Options. 
   
   
   
3. Select Spam from the navigation menu.
4. Untick the box to Automatically send suspected spam to my Spam folder. 
   
   
   
   
5. Click Save Changes. A message will appear to confim the changes have been saved.

Now any spam you receive will be delivered to your Inbox, and no new messages will go into your Spam folder. If you want to start using the Spam folder again, it's easy to turn it back on by repeating these steps and ticking the box to automatically send spam to your Spam folder.

Simple solutions to prevent unwanted emails clogging up your inbox.

Further information

 The Internet Watch Foundation - for reporting illegal online and email content

For more information about spam and the measures you can take to reduce it, visit the BT Yahoo! Anti-Spam Resource Centre:
 BT Yahoo! Anti-Spam Resource Centre

Welcome to the TalkTalk blog. Here you'll find regular entries from our Chairman Charles Dunstone, our CEO Dido Harding and members of the TalkTalk team.

From the launch of free broadband in 2006 to the release of our innovative new myTalkTalk package, we're always thinking of ways to change the phone and broadband market for the better. Through the blog you'll be the first to hear any news.

If you have any general comments or questions about TalkTalk, or would like to get the latest service updates, then feel free to visit TalkTalk Members