[Dovecot] dovecot-antispam plugin and "Failed to call dspam" message

[Johannes Berg]

On Mon, 2009-06-15 at 13:27 -0700, Jeremy Doran wrote:

> It certainly seems to be the 'verbose debug' information that DSpam
> prints to stderr that triggers this.
> 
> After testing with the patches from Marcin Rzepecki and Harlan Stenn, I
> managed completely disabled these kind of lines from being sent:
> 
> > Jun 13 15:35:18 stelleri imap: antispam: error: dspam returned <57397: [06/13/2009 15:35:18] query error: VERBOSE DEBUG (INFO ONLY - NOT AN ERROR): see sql.errors for more details >
> 
> I then put in the unaltered FreeBSD ports version of the plugin, and no
> longer got the "Failed to call dspam" messages.

Ok.

> Since these messages - even though non-zero and stating that they aren't
> an error - are just informational, I'd think that it might be an idea to
> have the plugin detect and ignore that.
> 
> Turning on DSpam debugging should not (I should think) break the plugin
> from working.

Well, that's not trivial. I guess if dspam has now been fixed to always
exit with a non-zero exit code we could remove the stderr checking code,
or make it depend on a configuration option. But as it was when I wrote
the code, dspam was broken enough for this to be absolutely necessary.

johannes
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