Setting up Outlook Express

Select Tools -> accounts.

Select Add -> Mail

Enter your name

Enter your email address.

Make sure POP3 is selected and enter the server names as shown.

Incoming POP3 : pop.1and1.co.uk
Outgoing SMTP : auth.smtp.1and1.co.uk

Enter your account name and password
(For the account name enter the full email address)

You should now see a new account called pop.1and1.co.uk, Click this and click properties.

If you wish you can change the pop.1and1.co.uk to more meaningful, e.g. My 1 and 1 mail.

Select the server tab, and make sure "My server requires authentication" is checked and apply the change.