sendmail
 

Can anyone help me figure out the mail system on this server I'm working with? I know these things can get pretty complicated.

As best I understand, this one is running to instances of sendmail with spam and antivirus in the middle like so:

sendmail-rx (new mail goes here and is forwarded to)
amavisd (which passes the mail through clamav and spamassassin)
sendmail-tx (mail ends up here and then goes to the MDA delivery into the users mailbox or sending to an external address)

Since SpamAssassin only marks messages with a score, I'm still trying to figure out what program is processing said score and doing something with the spam. Apparently I'm getting some false positives and I want to find out what's happening to the messages and stop the false positives.

Ok, I found out that a program called Amavis is doing the actual routing of the spam. I'm not sure where it puts it however or why it is marked as spam.