Doc Schneider wrote:
I guess I should have posted back to the list that I did end up using Dovecot and also configured and am using SMTP AUTH. The users who are on this new server used to use pop before SMTP but that ended up being a real pain to get going for Dovecot.
I just have a couple issues or could be non-issues to work out trying to get Sendmails SMTP AUTH to pass off spam to SpamAssassin without generating a authenication failure. Although it does appear to be handing off the spam to SA. At least, I'm seeing these errors in the maillog but also am seeing spam being caught. So like I said it could be a non-issue.
FWIW: I'm using the Dovecot that comes packaged with CentOS 4.4 64 bit.
You might want to look at http://www.mimedefang.com. It is an email scanner that runs as a sendmail milter and uses your choice of spam and virus scanning tools. As a milter, it can tell if sendmail's connection was authenticated or used ssl, plus it can reject as a result of the scan during the smtp conversation.