4 messages in net.sourceforge.lists.courier-usersRe: [courier-users] DNS loockup Errors
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dan....@bluewin.chOct 20, 2004 11:49 pm 
Sam VarshavchikOct 21, 2004 4:32 am 
cour...@gmx.netOct 21, 2004 5:27 am 
Dan JohanssonOct 21, 2004 11:51 am 
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Subject:Re: [courier-users] DNS loockup ErrorsActions...
From:cour...@gmx.net (cour@gmx.net)
Date:Oct 21, 2004 5:27:36 am
List:net.sourceforge.lists.courier-users

--On Donnerstag, 21. Oktober 2004 08:43 +0200 dan.@bluewin.ch wrote:

Oct 20 22:17:56 vangelis courieresmtp: id=00000963.4176B9D9.00002800,from=<XX.@dmj.nu>,addr=<XX.@hotmail.com

: DNS lookup failed.

Oct 20 22:17:56 vangelis courieresmtp: id=00000963.4176B9D9.00002800,from=<XX.@dmj.nu>,addr=<XX.@hotmail.com

,status: deferred

My qustion Is now, Is this an error in my configuration (I can do a nslookup/host/dig on hotmail.com, and it returns fine) or is this an Error message from my upstream smtp gateway (my esmtproutes only contains ": mail.bluewin.ch")

Courier uses its own resolver.

Try the lookup with the $PREFIX/bin/testmxlookup utility, and/or use the IP instead of the hostname in etc/esmtproutes.

Courier sometimes also handles MX's a bit a unusual if all of them have the same priority, but this does not apply to your particular setup with a fixed smarthost:

# ./testmxlookup hotmail.com Relay: mx4.hotmail.com, Priority: 5, Address: 65.54.253.230 Relay: mx4.hotmail.com, Priority: 5, Address: 65.54.190.230 Relay: mx4.hotmail.com, Priority: 5, Address: 65.54.190.179 Relay: mx4.hotmail.com, Priority: 5, Address: 65.54.167.230 Relay: mx3.hotmail.com, Priority: 5, Address: 65.54.253.99 Relay: mx3.hotmail.com, Priority: 5, Address: 65.54.167.5 Relay: mx3.hotmail.com, Priority: 5, Address: 64.4.50.239 Relay: mx3.hotmail.com, Priority: 5, Address: 64.4.50.179 Relay: mx2.hotmail.com, Priority: 5, Address: 65.54.252.230 Relay: mx2.hotmail.com, Priority: 5, Address: 65.54.190.50 Relay: mx2.hotmail.com, Priority: 5, Address: 65.54.190.7 Relay: mx2.hotmail.com, Priority: 5, Address: 65.54.166.230 Relay: mx1.hotmail.com, Priority: 5, Address: 65.54.252.99 Relay: mx1.hotmail.com, Priority: 5, Address: 65.54.166.99 Relay: mx1.hotmail.com, Priority: 5, Address: 64.4.50.99 Relay: mx1.hotmail.com, Priority: 5, Address: 64.4.50.50

Roland