Jona, > I'm planning to set up a personal spam filtering gateway. It should > collect mail from several remote POP servers, scan them through amavis > and make them available through an IMAP server. > I managed to figure out how to configure every piece of software > involved, there is only one step that causes a bit of trouble. In fact > there is no need for any MTA in this setup. Amavis will get the mail > from fetchmail using plain SMTP and should pass it to dovecot.
What Gary suggested would be a preferred setup. Its benefits are: - fetchmail is decoupled from content filtering, mail gets brough-in even when amavisd is down or in trouble for some reason; fetchmail retries (which may be problematic) are avoided; - amavisd is able to send notifications (DSN, admin notifications) to a local MTA which is always available (otherwise the mail fetching would need to be re-tried); - if mailbox is in trouble (e.g. disk full, over quota), mail stays in local MTA queue, no need for repeated fetchmail attempts. > I planned that Amavis would pass the mail on to procmail which stores it > in the MailDir format for dovecot to read it. The problem is that Amavis > doesn't support to relay directly to procmail or any other MDA. It does support piping to a command, e.g. as can be used in a sendmail setup. (although it is not a preferred way, the pipe interface is missing some of the SMTP protocol features, like being able to report a problem description back). Also in multiple-recipient messages piped command would need to implement non-delivery notifications (as it can only accept all or none), which is usually not the case with simple MDA programs. > That would mean that I have to use an MTA for the sole purpose of > relaying mail between Amavis and procmail. That's a bit of overkill IMHO. It adds reliability and predictability to the setup. > I read in the documentation that Amavis can call sendmail via the > command line. Is this interface flexible enough to call procmail > instead? Is anybody aware of a wrapper script? Probably it is, although I never tried it for such a purpose. Mark ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ AMaViS-user mailing list AMaViS-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
