Debugging Sieve scripts

[Henk.Roose at cwi.nl]

Kevin,

Kevin M. Myer wrote:

> Hello,
> 
> I have a problem that periodically crops up, then usually goes away and I never
> get around to diagnosing the root cause of it.  It seems to be triggered
> whenever I set a vacation/out of office message.  When I enable a vacation
> message, messages that would normally be filed into folders start appearing in
> my INBOX.  It becomes annoying quickly when you come back and have to sort
> through 300+ messages to find the things you want to see (other mail is list
> mail and system log messages).  Normally, disabling the vacation notification
> solves the problem but this time it didn't.
> 
> What I find even stranger is there appears to be no rhyme or reason for letting
> one message be filtered and another not.  I'm getting a lot of virus
> notifications for the latest version of the Bagle worm.  The majority of these
> are filed into my virus folder.  A few end up in my INBOX.  All should be
> caught by the same sieve script but aren't.  Same with list mail and system log
> messages.  The bulk are filtered properly but a few sneak through into my
> INBOX.  The messages that come through appear to be identical in nature to the
> messages that are filed.  It appears as if Sieve gets periodicaly overwhelmed,
> and just gives up on filtering for short periods of time.
> 
> I haven't been able to rule out that there's a bug in the program that I use to
> generate the scripts (Ingo 1.0.1 from the Horde project).  So I'm wondering if
> there is a way I can take a message that made it by Sieve, and somehow run
> Sieve in test mode, in much the same manner you can test ClamAV or
> SpammAssassin on a message and have it report back what the results are for a
> single message.  I'd like to have it run through my sieve script, show me the
> matches and then tell me what it would have done with the message.
> 
> Short of there being a bug in the script itself, does anyone else have any ideas
> why Sieve behaves erratically, apparently triggered by turning vacation notices
> on, and then will eventually clear itself up?

What do your logs say? Are there lmtpd errors present?
I had a problem with the sieve lexer/parser not resetting its state
after a runtime error (see bug #1951) in version 2.1.16. If you're
using the 2.1 version check out the patch attached to the bug.

> 
> Thanks,
> Kevin
> 

Bye,
Henk

--
Henk Roose - Henk.Roose at cwi.nl
CWI - Centrum voor Wiskunde en Informatica
Centre for Mathematics and Computer Science
Amsterdam (NL)
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