POP Mail and security

[Brian Densmore]

I have some questions. I am getting ready to turn on the POP mail
services for my server.
I am unsure, which path to take here.

The two configurations I am considering are:

1) POP3 over SSH
2) APOP, KPOP, IMAP server

My issues are this, I get infrequent attacks on the POP3 port (currently
disabled).
I understand POP3 daemons are more susceptible to attack, is that true?
Which server will be more secure from attack? 
Also I am using sendmail as my MTA, will I still be able to use
sendmail? 
And finally, I have a PHP based webmail server installed and running.
What will adding a POP server do to this?

Thanks,

Brian Densmore
Associate
mailto:densmoreb at ctbsonline.com
CompuTech Business Solutions, Inc.
http://www.ctbsonline.com/