Secure:

User Name: Full email address
Password: The password for this email account.
Incoming Mail Server: mailXX.extendcp.co.uk or imap.extendcp.co.uk
Incoming IMAP port: 993 using SSL
or Incoming POP3 port: 995 using SSL

Outgoing Mail Server: mailXX.extendcp.co.uk or mta.extendcp.co.uk
Outgoing SMTP port: 465 using SSL

If you are asked to choose the authentication type for incoming or outgoing, choose Password.

The number in mailXX will depend on your particular hosting package, please get in touch if you need to find out.

Non-secure:

Incoming Mail Server: mail.yourdomain.com
Incoming IMAP port: 143 / POP3 port: 110 SSL
Outgoing Mail Server: mail.yourdomain.com
Outgoing SMTP port: 587