On Wed, 2005-02-23 at 11:15 -0600, -ray wrote: > I have max daemon children set to 250. Occasionally one machine will open > 250 connections, probably spamming, so sendmail stops new connections. > > Is there a sendmail way to limit # of connections by ip address? > > ray
Another feature, in addition to rate throttling and connection throttling in 8.13.x , is the greet_pause feature which delays the initial 220 greeting upon connection by up to x milliseconds. Any connected server trying to issue mail commands prior to the 220 greeting will get met with 550 failures; this is useful for a lot of zombies, etc that just blast out spam/virii without any adherence to protocol. Sven _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
