[exim] Logfile format corruption

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Συντάκτης: Klaus Ethgen
Ημερομηνία:  
Προς: exim-users
Αντικείμενο: [exim] Logfile format corruption
Hello,

I use exim 4.89, the build on debian stable.

Since some time I see some rare logfile corruptions in mainlog. As it
looks, its always about the dkim log entry.

Normally it looks lite the following:
|2017-05-30 08:17:37 1dFaTG-0006sS-FH DKIM: d=wellness786.biz s=DEFAULT c=simple/simple a=rsa-sha256 b=2048 t=1496123754 [verification succeeded]
|2017-05-30 08:29:02 1dFaeL-0000pU-Nq DKIM: d=e.mozilla.org s=200608 c=relaxed/relaxed a=rsa-sha1 b=1024 i=Mozilla@??? [verification succeeded]
|2017-05-30 09:01:36 1dFb9r-00011o-SN DKIM: d=1profimail.com s=DEFAULT c=simple/simple a=rsa-sha256 b=2048 t=1496127619 [invalid - public key record (currently?) unavailable]
|2017-05-30 12:46:37 1dFefd-0002Tx-A5 DKIM: d=yahoo.com s=s2048 c=relaxed/relaxed a=rsa-sha256 b=2048 t=1496141194 [verification failed - body hash mismatch (body probably modified in transit)]

But sometimes, it looks like the following (note the line break in the
middle):
|2017-05-30 11:22:38 1dFdMM-0001w2-Jo DKIM: d=powermtapro.com s=1494427074.powermtapro c=relaxed/relaxed a=rsa-sha1 b=1024 i=ME-Version: 1.0
|Con [verification succeeded]
|2017-05-30 17:09:05 1dFilc-0003wq-FR DKIM: d=progressiverailroading.com s=key348progressiverailroading c=relaxed/relaxed a=rsa-sha256 b=1024
|JObUY b=1024
|2017-05-31 16:17:21 1dG4R7-0000uJ-As DKIM: d=internationalfax.org s=inter.fax c=relaxed/relaxed a=rsa-sha1 b=1024 i=2j1Kzq
| Xxp6cgBj9WzkSP1vU [verification succeeded]
|2017-05-31 14:35:18 1dG2qM-0000GM-Kn DKIM: d=niceforward.com s=1493569536.niceforward c=relaxed/relaxed a=rsa-sha1 b=1024 i=.de>
|MIME-Version: [verification succeeded]

I put a '|' at the begin of the line for clearness.

Does anybody have an idea why I get that rare corruptions?

Regards
   Klaus
- -- 
Klaus Ethgen                                       http://www.ethgen.ch/
pub  4096R/4E20AF1C 2011-05-16            Klaus Ethgen <Klaus@???>
Fingerprint: 85D4 CA42 952C 949B 1753  62B3 79D0 B06F 4E20 AF1C