[gentoo-user] cyrus-sasl, courier-authlib, which one? or both?

[Bill Roberts]

I am currently running my email server on my workstation, providing email
for myself and my wife. I use mutt, my wife uses outlook. 

I basically used the virtual email server guide, it has run ok for two years,
but my wife suddenly cannot access her email. The issue seems to be the
pop3 server, not listening on port 110.

I've decided to move the mail server to my router/firewall/proxy server.
That will allow me to play harder on my workstation, without fear of
disrupting email. Question is: How?

I am planning on building a simpler email system (I don't use imap,
virtual domains, or a user database). In my quest for Zen-like simplicity
and rock-solid quality, I'm planning on using postfix, plus courier as a
pop3 server.  For authentication, some guides use sasl, some use authlib.
Which is better?? And why would anyone use both?! They seem to both serve
the same function. Any suggestions/pointer appreciated.

Bill Roberts