Please find here advice and links to help you answer your questions about setting up and using email.
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
Move all your messages, contacts and calendars to BT Yahoo! Mail using the free BT Yahoo! TrueSwitch service.
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 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
Get help for all username/password issues at www.bt.com/help/passwords
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.
You can access your email from anywhere in the world via webmail.
Tutorial: Accessing your email
Go straight to webmail now (you'll need to login with your username and password)
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
Tutorial: using SpamGuard Plus to minimise spam
Completely new to email?
Try our interactive tutorial for an introduction to the basics of email.