I have setup a mail server with centos 5.6. My setup includes postfix, dovecot and apache with squirrelmail.
I have enabled ssl on httpd with self signed certificates in ssl.conf.
mail users are allowed to login through web (https) only.
I am a bit confused regarding the channel encryption. Do I need to enable TLS in dovecot and postfix as well for complete channel encryption.
Or simple ssl in httpd would be enough for mail encryption over the channel (retrieving mail or posting mail). Pls advise.