Patrick,

> Depending if a message content category has been cached or not, amavis
> alternates the log it sends:
> 
> First hit:
> # amavis[30689]: (30689-14) Blocked INFECTED (310, Eicar-Test-Signature),
> [192.168.50.162] [192.168.50.162] <virus-sen...@example.org> ->
> <virus-r...@works.com>, quarantine: L/virus-L2pjxyYgIrRe, mail_id:
> L2pjxyYgIrRe, Hits: -, size: 1072, 118 ms
> 
> Cached hit:
> # amavis[11257]: (11257-01) Blocked INFECTED
> (Eicar-Test-Signature(44d88612fea8a8f36de82e1278abb02f:68)), LO
> 
> Would it be possible to _harmonize_ the log output and have the cache
> reference more isolated like this:

Right, this is just one of the consequences of caching results.
Other may be even more sinister: with personalized spam checking,
with getting back a signed message from a remote mailing list,
or dealing with virus checkers reporting spam.

...which is why I ditched results caching with 2.7.0-pre9.

release notes in 2.7.0-pre9:

- caching of virus and spam check results based on a mail body hash has been
  removed. It was very beneficial years ago when virus storms were common
  and spam was not personalized. Nowadays (2010) the feature barely pays
  for itself (savings are comparable to additional processing needed), and
  is incompatible with per-recipient spam checks (as introduced with this
  version), and incompatible with DKIM verification on locally originating
  and signed mail being returned from a mailing list. Rather than trying
  to fit a square peg into a round hole, the feature is now dropped.

  Associated configuration variables are still declared for compatibility,
  but have no effect:
    $enable_global_cache,
    $virus_check_negative_ttl, $virus_check_positive_ttl,
    $spam_check_negative_ttl, $spam_check_positive_ttl


Mark

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