Hi there, Background:
Until recently we have always used Qmail / Qmail-Scanner / ClamAV / SpamAssassin for our spam/virus filtering. Some friends of ours reported some incredible performance figures using Sendmail and MIMEDefang so I have set up a test Sendmail / MIMEDefang / ClamAV / SpamAssassin box to do some benchmarks. I have got Sendmail/MIMEDefang to scan test messages ok and its detecting spam ok, but due to my lack of Sendmail experience I have some questions about how to fine tune the setup. We use dedicated anti-spam servers as our MX hosts for domains we spamfilter. The anti-spam servers process the messages, add their headers to the message to mark each message as spam or not, and then deliver them to our real mail servers. With our current Qmail setup, one file "rcpthosts" lists all the domains we are accepting mail for on the anti-spam server, then another file "smtproutes" lists which servers each domain's mail should be sent to once it has been processed. Question: How do I reproduce this with Sendmail/MIMEDefang - what are the config options I need to set? I'm pretty sure this has much more to do with Sendmail and less to do with MIMEDefang, but I couldn't find any active sendmail mailing lists after a quick search. I've seen an example 'gateway.mc' Sendmail config file that has a lot of different masquerade options set, but I don't think that's what I need to use since I just want to scan mail for a list of domains and specify which server to forward it onto once finished, not masquerade all of them as my primary domain. Side note: Our Qmail server can process about 100 messages per minute with full remote checks enabled with SpamAssassin, using SQL based user preferences. Our friends reported scanning 26,000 messages per minute on a dual-Xeon box with two Sendmail's running, each bound to a separate Ethernet card, and each bound to a different CPU. I doubt we will see a full 260x increase since we are having SpamAssassin do full remote RBL/DNS checks as well as Razor2, Pyzor and DCC, but still it does seem like Sendmail/MIMEDefang is much faster than Qmail/Qmail-scanner... which is why I'm here. :-) Thanks, and sorry if this is too off topic! _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
