On 18 Feb 2002 at 17:01, Daniel Rogers wrote: > Recently, we've been the unfortunate recepients of several spams that are > sent so quickly as to cause spamassassin to overwhelm our mail server. > > Here's what happens: > > Spammer connects to smtp port, gives his helo and mail from, then gives > 10-15 "rcpt to:"s, essentially bcc'ing a bunch of people on the spam. > > sendmail forks 10-15 procmails, which fork 10-15 spamcs, which fork 10-15 > spamds > > Spammer sends over 30 of these in under two minutes > > Things get ugly. > > At this point, the system is out of processes and things start dying. > > I was thinking that sendmail with milter might help with this problem, but > installing sendmail 8.12.2 started to hurt my head. Would milter help? > Would any other mailers handle this better?
Sendmail + milter would very definitely help. Processing is done once per message, rather than once for each recipient. We're using MIMEDefang (http://www.roaringpenguin.com/mimedefang/), which is a milter-based system with hooks to SpamAssassin (and virus scanners, etc.) It works very well. Another nice thing you can do with milter-based systems is reject messages during the SMTP conversation, which can reduce delivery processing overhead, etc. to some extent. ---- Nels Lindquist <*> Information Systems Manager Morningstar Air Express Inc. _______________________________________________ Spamassassin-talk mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/spamassassin-talk
