[exim] exim immediately bouncing messages to greylisting hos…

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Author: Marc Haber
Date:  
To: exim-users
Subject: [exim] exim immediately bouncing messages to greylisting host?
Hi,

I am having my exim misbehave when sending mail to a host which does
greylisting:

[10/510]mh@torres:~/tmp$ grep lists.alioth.debian.org mainlog | grep -v '<='
2007-03-27 17:13:35 1HWDMb-00027s-2i => blackhole (DATA ACL discarded recipients): drop, spam_score 9.3, but delivered from whitelisted sender dpatch-maintainers-bounces+mh+dpatch-maintainers=zugschlus.de@???
2007-03-29 14:15:10 1HWtWv-00063A-Bb == pkg-exim4-users@??? R=dnslookup T=remote_smtp defer (-44): SMTP error from remote mail server after RCPT TO:<pkg-exim4-users@???>: host lists.alioth.debian.org [217.196.43.134]: 451 Greylisted - please try again a little later
2007-03-29 14:33:56 1HWtWv-00063A-Bb => pkg-exim4-users@??? R=dnslookup T=remote_smtp H=lists.alioth.debian.org [217.196.43.134] C="250 OK id=1HWtp9-0007z6-9y"
2007-04-03 21:08:29 1HYoMk-00036r-7k => blackhole (DATA ACL discarded recipients): drop, spam_score 13.8, but delivered from whitelisted sender dpatch-maintainers-bounces+mh+dpatch-maintainers=zugschlus.de@???
2007-04-04 14:33:41 1HZ4g9-00081Z-43 == pkg-exim4-users@??? R=dnslookup T=remote_smtp defer (-44): SMTP error from remote mail server after RCPT TO:<pkg-exim4-users@???>: host lists.alioth.debian.org [217.196.43.134]: 451 Greylisted - please try again a little later
2007-04-04 14:33:41 1HZ4g9-00081Z-43 ** pkg-exim4-users@???: retry timeout exceeded
[11/511]mh@torres:~/tmp$ grep 1HWtWv-00063A-Bb mainlog
2007-03-29 14:15:01 1HWtWv-00063A-Bb <= mh+pkg-exim4-users@??? U=mh P=local S=1506 id=20070329121501.GI18757@???
2007-03-29 14:15:10 1HWtWv-00063A-Bb == pkg-exim4-users@??? R=dnslookup T=remote_smtp defer (-44): SMTP error from remote mail server after RCPT TO:<pkg-exim4-users@???>: host lists.alioth.debian.org [217.196.43.134]: 451 Greylisted - please try again a little later
2007-03-29 14:33:56 1HWtWv-00063A-Bb => pkg-exim4-users@??? R=dnslookup T=remote_smtp H=lists.alioth.debian.org [217.196.43.134] C="250 OK id=1HWtp9-0007z6-9y"
2007-03-29 14:33:56 1HWtWv-00063A-Bb Completed
[12/512]mh@torres:~/tmp$ grep 1HZ4g9-00081Z-43 mainlog
2007-04-04 14:33:33 1HZ4g9-00081Z-43 <= mh+pkg-exim4-users@??? U=mh P=local S=1853 id=20070404123333.GE26355@???
2007-04-04 14:33:41 1HZ4g9-00081Z-43 == pkg-exim4-users@??? R=dnslookup T=remote_smtp defer (-44): SMTP error from remote mail server after RCPT TO:<pkg-exim4-users@???>: host lists.alioth.debian.org [217.196.43.134]: 451 Greylisted - please try again a little later
2007-04-04 14:33:41 1HZ4g9-00081Z-43 ** pkg-exim4-users@???: retry timeout exceeded
2007-04-04 14:33:41 1HZ4gH-00081g-Ju <= <> R=1HZ4g9-00081Z-43 U=Debian-exim P=local S=2954
2007-04-04 14:33:41 1HZ4g9-00081Z-43 Completed

As you can see, message 1HWtWv-00063A-Bb was received on March 29,
temprejected and delivered during the next queue run. On April 4,
message 1HZ4g9-00081Z-43 was received, temprejected and immediately
bounced by my local exim for "retry timeout exceeded". This is what
exinext says:

$ sudo exinext lists.alioth.debian.org
R: domain_literal for user@???
R: dnslookup for user@???
Route: pkg-exim4-users@???:<mh+pkg-exim4-users@???> error -44: SMTP error from remote mail server after RCPT TO:<pkg-exim4-users@???>: host lists.alioth.debian.org [217.196.43.134]: 451 Greylis
first failed: 29-Mar-2007 14:15:10
last tried: 04-Apr-2007 14:33:41
next try at: 04-Apr-2007 20:33:41
past final cutoff time
[14/514]mh@torres:~/tmp$

Looks like the retry database was not updated after the successful
delivery of 1HWtWv-00063A-Bb.

Can somebody explain what is going on here?

Greetings
Marc

-- 
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Marc Haber         | "I don't trust Computers. They | Mailadresse im Header
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