On 03/08/11 17:28, John Hinton wrote: > I only have one Postfix server running at the moment and have some > questions. On that install, I did Amavisd-new with ClamAV, SpamAssassin, > Postfix and Dovecot. > > I know this is a bit off topic, but I'm really hoping for performance > guidance. > > Is the added layer of complexity running Amavis worth the effort on a > system with moderate mail flow? Or should I just go down the path of > getting Clam and SA working with Postfix and be done with it? > That really depends if you want the extra functionality Amavisd-new offers. For example, do you want to be able to quarantine spam/viruses or simply tag them as such and leave it for the end user to filter in their inbox? (although I suspect there's many ways to implement a quarantine other than amavisd). > Whatever path I decide upon now will hopefully be the future for other > system builds to come. I have about a dozen Sendmail installs running > (which will eventually need to be moved over). Some of what I didn't > like about those is Clam/AV and other checks occurred on both incoming > and outgoing email. We pretty much don't have an outbound email virus or > spam problem, so were getting a number of false positives due to DHCP > and clients being assigned a dirty IP address from time to time. > > So yes, what's a good mailserver setup which hopefully stays as close to > upstream as possible on 6.0? > I don't see much relevance in what upstream does, but FWIW the default MTA in RHEL6 is now Postfix. Dovecot is a sensible choice and integrates well with Postfix. rpmforge has an updated amavisd/SA/ClamAV stack that's generally very reliable for production use. I run Postfix/Dovecot with Amavisd-new/SA/Clam on el5 and am more than happy with that setup, but there are many ways to skin this particular cat and much will depend on your own personal preference.