[Dovecot] antispam plugin claims "antispam signature not found"

Thorsten Vollmer thorsten at thvo.de
Thu Nov 27 21:41:57 EET 2008

On Thu, 2008-11-27 at 20:01 +0100, Jakob Curdes wrote:
> Eugene wrote (somte time ago, I am just now recollecting my threads):
> > Jakob Curdes wrote
> >> Some weeks ago I asked a question on the antispam plugin; obviously
> >> nobody could help me. I just worked on it again but made no progress.
> >> Is actually anybody out there running the antispam plugin with dspam?? I
> >> am willing to write a Wiki page for configuring this as soon as I get it
> >> to work.
> >> .....
> >> - as soon as I move a message into the spam folder it gives an error
> >> message saying "antispam signature not found"
> >
> > Just had this error myself. In my case, the cause was a large spam 
> > message (above the configured MaxMessageSize parameter for DSPAM) that 
> > was skipped during tests and thus no signature was added. Might this 
> > be true in your case?
> Might be for some messages as I just detected that some messages have a 
> signature and others don't.
> BUT I also cannot move messages into spam that carry a signature. When I 
> feed the message corpus on the command line it works, but not via the 
> antispam plugin.
> >> X-DSPAM-Signature: 1,49084a24139132188715614
> >
> > Another guess: if that comma is not a misprint, something is wrong in 
> > your setup.
> Why? Mine all look like that; are the signatures configurable somewhere 
> in dspam?

DSPAM's signature contains a comma if MySQLUIDInSignature is enabled.
That setting does not affect dovecot-antispam though.


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