[exim] Spool format error in 4.77

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Author: Kai Risku
Date:  
To: exim-users@exim.org
Subject: [exim] Spool format error in 4.77
After upgrading from 4.71 to 4.77 a week ago, I have had a few cases of corrupted spool files.

When looking at the H-file, I can see that some header has been truncated, e.g.



The file 1RY6OQ-00032L-Ok-H ends like this:

    085  Received-SPF: permerror (aep.com: Maximum DNS-interactiv

i.e. no more header lines after that too short line.



The file 1RY2cU-00005H-6c-H contains these lines in the middle (username protected with x's):

171P Received: from 91.76.25.16(helo=arrak.fi)
        by arrak.fi with esmtpa (Exim 4.69)
        (envelope-from )
        id 1MMLVB-8417zy-2K
        for <xxxx@??? From: <xxxx@???>
020T To: <xxxx@???>

The received-line is too short (not 171 chars) and thus the From-line starts in the middle of it.



And the file 1RXyc0-0007YQ-4h-H has a similar received-line truncated in the middle:

190P Received: from mailserver.pointshop.dk (localhost [127.0.0.1])
        by mailserver.pointshop.dk (Postfix) with ESMTP id 9F83263A4C0
        for <xxx357  DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pointshop.fi; h=from:to
        :subject:date:message-id:mime-version:content-type; s=
        pointshop_dkim; bh=relC1RFiQD3tgoZMhznIjj+9s2M=; b=TJej9J2xJQma3
        R6sIRMlQztxpAkchPvQUGWZg/va8iE2jjeqhv4GFU+USnn/WcnHBnhr4DjsOFzmZ
        JP3PcOl3GQBKJRFHa/3kdSjVb02pMKEapkpPrVqw5Dcnr5QVIEF5r+x2AlAAbUB7
        dgIHJwW0zazGnzSx+nJgkx+IWZkg/Q=


What gives? I cannot find anything else suspicious in the logs. It just seems like some headers are randomly being truncated when being written to the spool file. Anyone seen something similar?


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Kai.Risku@???     GSM  +358-40-767 8282
Oy Arrak Software Ab   http://www.arrak.fi