I have a customer that requires SSL transmission of email. I’ve set up an email address on one of our internal domains with a dedicated IP and secure certificate. Outlook is set to use SSL on POP3 & SMTP:
SMTP - 465
POP - 995
The following message appears when testing the email account:
Log onto incoming mail server (POP3): Your server does not support the connection encryption type you have specified. Try changing the encryption method. Contact your mail server administrator or Internet service provider (ISP) for additional assistance.
If you want to use SSL/TLS on a regular mail server at JH, the trick is to use the real server name rather than the domain alias. Using the domain alias will flag a certificate error, and I think Outlook at least, will not allow an override like Thunderbird will. (Correct me if I’m wrong, I don’t use Outlook myself.)
In Thunderbird for POP3, I use
Server: mail3.myhsp… (need to use the correct server dependent on which one your domain uses, of course)
Connection security: SSL/TLS
Port 995
Authentication: encrypted password
