greylist embargo not ending

Bolmerg-Berliner Ludger - Munich-MR lbolmerg@munichre.com
Mon May 3 21:21:11 UTC 2004


>> I have an issue with messages (no spam) coming from a fairly big ISP which do not leave the greylist >>embargo.
>>
>> Here is an example from the sendmail maillog (sender and recipient addresses have been modified):
>>
>> It is obviously the same message that gets embargoed. 
>>
>> The msgid is always the same.  For some reason the size value in
>> the maillog file differs sometimes.  
>
>On the contrary, it is obviously not the same message if its size varies.
>
>That the Message-ID lines in the messages are the same only indicates
>that the sender has a broken message-ID generator as well as broken
>response to 4yz temporary rejections.
>
>The first step toward a solution is look at the messages themselves.
>Turn on DCC logging.  If you use dccm or dccifd, ensure that the 
>log directory (often /var/dcc/log) is writable.  If you use dccproc,
>add -E -l logdir to however you invoke dccproc.  Ensure that you do not
>have an "option greylist-log-off" line in either the per-user or
>global whitelist.
>
>Then look at the DCC log files.

Here is a diff of two of the msg files from /var/dcc/log.  Both log files contain the complete message, nothing was discarded.  This clearly shows that the messages are the same.  Anyway, I thought that greylisting would only compute checksums of the (IP,sender,recipient) triple.  

#diff msg.4iOOaF msg.4iOOc0
2c2
< DATE: 05/01/04 13:24:33 CEST
---
> DATE: 05/01/04 13:31:13 CEST
8,9c8,9
< Received: from pop.gmx.net ([213.165.64.20]) by hxx0042.munich.munichre.com
<           via smtpd (for netserv2.dmz.munichre.com [192.168.82.36]) with ESMTP; Sat, 1 May 2004 13:24:33 +0200
---
> Received: from mail.gmx.net ([213.165.64.20]) by hxx0042.munich.munichre.com
>           via smtpd (for netserv2.dmz.munichre.com [192.168.82.36]) with ESMTP; Sat, 1 May 2004 13:31:13 +0200
79c79
< X-DCC-xmailer-Metrics: netserv2.dmz.munichre.com 1192; Body=1 Fuz1=1 Fuz2=1
---
> X-DCC-xmailer-Metrics: netserv2.dmz.munichre.com 1192; Body=2 Fuz1=2 Fuz2=2
86,88c86,88
<                      Body: 31cf9e69 6cd971b8 12c5d98d a9086a55       1
<                      Fuz1: a19fc7f1 d9006b21 7fdbc5c4 b3a505d7       1
<                      Fuz2: 2cc7401b 4deb9bed bee61d39 f720b452       1
---
>                      Body: 31cf9e69 6cd971b8 12c5d98d a9086a55       2
>                      Fuz1: a19fc7f1 d9006b21 7fdbc5c4 b3a505d7       2
>                      Fuz2: 2cc7401b 4deb9bed bee61d39 f720b452       2
94c94
< rejection message: 452 4.2.1 mail i41BOX9v044261 from 213.165.64.20 temporary greylist embargoed
---
> rejection message: 452 4.2.1 mail i41BVD9v044628 from 213.165.64.20 temporary greylist embargoed




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