Using encryption is strongly recommended wherever possible to as to ensure private communication between you and the server and to protect your username and passwords from being intercepted by other people.
Historically, accessing our email servers using SSL/TLS has been available but problematic in that the certificates we use is issued by 'CA CERT' which although is 'secure', email programs often popped up a warning about the security settings.
For IMAP:
Server hostname: mail.aa.net.uk
Port: 993
Security options: SSL/TLS
For POP3:
Server hostname: mail.aa.net.uk
Port: 995
Security options: SSL/TLS
You must use SSL/TLS as we do not support insecure access on these servers.
Note: mail.aa.net.uk can also be used to manage your sieve filters (TLS on port 4190)
Using the incoming mail server as: mail.aa.net.uk is now the recommended name to use. We ask that all customers check and update their settings.