Bug#303130: exim4-daemon-heavy: exim4 "forgets" emails in /var/spool/exim4/scan, leaving emails undelivered without notice

[Stephen Gran]

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This one time, at band camp, Sebastian Hegler said:
> Marc Haber wrote:
> > Sebastian, can you please verify whether Stephen's hypothesis is
> > true for your system and try to deliver some proof that there were
> > indeed messages lost?
> Sorry, I cannot. These messages I found are very old, so there are no
> more logs available.  I stumbled over those messages in search for
> other emails which people said were not delivered. As I said, my
> server is plagued by low memory conditions, so the scanning processes
> blow quite often.
>=20
> Well, I do hope that Stephen is right. The oldest message lying around
> dates back to November 2004. Was exiscan working alright then?

What I have observed is that when the exiscan patch blows chunks, a copy
is saved in the scan/ directory.  However, this is not a lost email - it
it an incoming email that failed to make it past one of the scanners,
and has never been 2xx accepted for delivery after that DATA phase.  It
would of course be ideal if the exiscan patch cleaned up completely, but
it is usually an external scanner blowup at the root of it, so I have
never reported it against exiscan.
--=20
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|   ,''`.					     Stephen Gran |
|  : :' :					 sgran@debian.org |
|  `. `'			Debian user, admin, and developer |
|    `-					    http://www.debian.org |
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