Date: Sun, 13 Dec 1998 01:19:38 -0600 (CST) From: Kevin Day <toasty@home.dragondata.com> To: dean@odyssey.apana.org.au (Dean Hollister) Cc: freebsd-isp@FreeBSD.ORG Subject: Re: sendmail morons Message-ID: <199812130719.BAA20156@home.dragondata.com> In-Reply-To: <Pine.BSF.4.05.9812131440360.23872-100000@odyssey.apana.org.au> from Dean Hollister at "Dec 13, 1998 2:41:35 pm"
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> On Sun, 13 Dec 1998, Kevin Day wrote: > > > Somehow, we're on some spam software's list of open relays, I think. We > > aren't open to relaying, but people sure try. > > > > I'm guessing this is a bug in the software, but... when it can't relay, it > > leaves the connection open, then goes and tries again, and again..... > > [snippity] > > > I'll end up with hundreds of these sometimes.. They timeout in 15-20 mins, > > but my server is thrashing so badly at that point, it's unusable. > > > > Anyone see this? Anyone know what I can do? > > Yes, I added the IP to our local database of blocked ip's. The server > returns a permission denied error (550). > > > Sendmail is almost always sitting in 'cmd read' or 'child wait'. > > Eventually, it will timeout. > > Regards, > > d. > > I block them too, however... I end up with adding 5-10 new addresses a day this way, and have at times had 500-800 sendmail processes running. They do time out, but if 4-5 people happen to do this at once, it gets scary. There has to be a better way. :) Kevin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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