SSL is sort of abnormal for email, but important notheless because it
protects user passwords. Now it is unrealistic to think you will be securing
the conntents of your email, because it will go through a plain text SMTP
server somewhere. But IMAP-SSL secures the Password, so it is encrypted
instead of cleartext. Courier-IMAP with SSL is what I run- it uses port 993,
so you would needport 143 (normal imap) 25 (SMTP) and 993 (IMAP SSL) open. I
would reccomend using vpopmail as well, they fit together nicely. If you
read the docs over and have more specific questions, email me.
Jacob
