[TriLUG] Mail server questions

[Lisa C Boyd]

Having had better days, I've tried to "fix" my mail server and I'm 
growing fuzzy on how a few things are handled. I appreciate any clear 
direction that can be given :)

I have Sendmail set up to receive mail. Then procmail processes it as 
well as CanIt scanning it for viruses/spam. I'm not sure right now which 
order that happens in. I've also tried to setup Dovecot for imap/pop3 
access but that's causing me even more problems so I'm thinking of 
changing.

1. I have files for each user in /var/spool/mail. What puts the mail 
there? What deletes the mail from that file? What moves the files from 
there to the user's home directory?

2. What happens if I have both maildirs and mbox?

Thanks for any help!
Lisa B.