9 messages in net.sourceforge.lists.courier-users[courier-users] RE: Debugging SMTP ti...
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Julian MehnleJun 1, 2003 9:36 am 
Julian MehnleJun 1, 2003 10:12 am 
Sam VarshavchikJun 1, 2003 10:31 am 
Robert PenzJun 4, 2003 11:12 am 
Julian MehnleJun 4, 2003 11:43 am 
Sam VarshavchikJun 4, 2003 11:53 am 
Julian MehnleJun 4, 2003 12:11 pm 
Robert PenzJun 4, 2003 1:40 pm 
Juha SaarinenJun 5, 2003 2:08 pm 
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Subject:[courier-users] RE: Debugging SMTP timeout problemsActions...
From:Julian Mehnle (lis@mehnle.net)
Date:Jun 4, 2003 11:43:46 am
List:net.sourceforge.lists.courier-users

Robert Penz <robe@outertech.com> wrote:

I've the same problems since yesterday .. I can't send a mail via smtp auth for about 5 min or so, after that time it works again until the next 5 problem minutes.

I've tried to narrow the problem down.

during this 5 mins I get only this, after this I time I get the server greeting. I've tried it from 5 computers (everyone in a other subnet and other dns servers) always the same. on localhost it works always.

This looks very much like a reverse DNS problem.

I've used dig -x client_ip during this time to check if the dns stuff works and yes that does.

I've following running, whichs is not the same as you've ?

BLACKLISTS="-block=blackholes.mail-abuse.org,BLOCK/127.0.0.2 -block=relays.mail-abuse.org,BLOCK/127.0.0.2 -block=dialups.mail-abuse.org,BLOCK/127.0.0.2"

Have you tried the following?

$ dig 225.85.30.195.blackholes.mail-abuse.org ANY $ dig 225.85.30.195.blackholes.mail-abuse.org PTR

Currently, not even

$ dig blackholes.mail-abuse.org NS

works for me.

It seems[1] like the registration period for the "mail-abuse.net" domain has expired, and MAPS LLC forgot to renew it.

Julian.

[1] http://www.mehnle.net/tools/whois?object=mail-abuse.net