John Horne wrote: > On Tue, 2007-09-11 at 17:01 -0700, Marc Perkel wrote: > >> John Horne wrote: >> >>> On Fri, 2007-09-07 at 14:56 +0100, Chris Edwards wrote: >>> >>> >>>> Anyone else noticing more concurrent incoming SMTP connections in last >>>> couple of weeks ? >>>> >>>> >>>> >>> May I ask do you mean concurrent as in from the same sending host, or >>> simply that you are receiving more connections generally than usual? >>> >>> >>> >>>> Perhaps it's time to switch our DNSBL etc tests from "deny" to "drop" mode. >>>> Is there any obvious downside to this ? Do most folk use drop already ? >>>> >>>> >>>> >>> I've been running one of our mailhubs with a 'drop' instead of 'deny' >>> for the past few days. No problems reported. >>> >>> >>> John. >>> >>> >>> >> Just a thought. Maybe you could do a rate limit in the NOTQUIT acl to >> slow down IP addresses that don't send a quit? >> >> > Surely imposing any sort of delay will cause more connections to be used > up though? Or rather it will delay connections to become free, and thus > make the problem worse. > > > John. > >
The NOTQUIT is mostly all spam and spam doesn't retry. -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
