bogofilters trumps spamassassin on dapper upgrade

Bug #37878 reported by David Allouche
12
Affects Status Importance Assigned to Milestone
evolution (Ubuntu)
Fix Released
Medium
Ubuntu Desktop Bugs

Bug Description

Observed behaviour: After upgrading a Breezy system to Dapper (current Evolution 2.6.0-0ubuntu4), spam filtering stops working. Before the upgrade, it was up and working: the spamassassin plugin was enabled and spamassassin was installed.

Workaround: Disabling the bogofilter plugin makes spam filtering works again.

Expected behaviour: Previously configured spamassassin filtering should not be trumped by the appearance of the new bogofilter plugin.

Interpretation: It looks like the bogofilter plugin takes precedence over the spamassassin plugin when both are enabled. Since I never used bogofilter, it was not trained and was effectively non-functional. At most one spam filtering plugin should be allowed. If the spamassassin plugin was previously enabled, the ugrade should not enable the bogofilter plugin.

Tags: bitesize
Revision history for this message
Sebastien Bacher (seb128) wrote :

Thanks for your bug. Daniel, that's an issue we should to fix for dapper, both plugin conflict and can't be used together. Since upgrades should not be broken the bogofilter one should probably not be activated if user doesn't ask for it

Changed in evolution:
assignee: nobody → dholbach
Revision history for this message
David Allouche (ddaa) wrote :

I think it makes a lot of sense to enable the bogofilter plugin in the default settings for evolution, since bogofilter is supported (shipped?) and that would address the numerous bugs about broken spam filtering in the default configuration.

It might also be nice if bogofilter was enabled if spamassassin was not previously enabled, but that might be more difficult to implement.

There should also be some support in Evolution for conflicting plugins, so a naive user may not enable both spamassassin and bogofilter plugins. But that might be even more difficult to implement.

In any case, upgrade should not break a previously functional spam-filtering setup, I would be happy to file separate bugs for the other issues and have that one closed once this specific upgrade issue is fixed.

Changed in evolution:
status: Unconfirmed → Confirmed
Changed in evolution:
assignee: dholbach → desktop-bugs
Revision history for this message
Peter Whittaker (pwwnow) wrote :

Is this not a duplicate of https://launchpad.net/distros/ubuntu/+source/evolution/+bug/9870 ?

I'm reluctant to mark 37878 as a dupe, as others may feel they are separate problems, but from reading 9870, it seems to me that spam filtering has been mangled in Evolution for years, this isn't something new.

For example, https://launchpad.net/distros/ubuntu/+source/evolution/+bug/48872 also concerns mangling. To me, these seem to be symptons of the same underlying problem: Evolution's spam filter doesn't work out of the box, cannot be trained without counter-intuitive actions (mark as spam, then ham), and does not cooperate with user addins (which shouldn't be necessary, IMHO).

There's also https://launchpad.net/distros/ubuntu/+source/evolution/+bug/62192, which seems to come from this same underlying problem.

Would the problem get more or less attention and TLC if these bugs were all marked dupe of a 2+ year old high importance confirmed bug?

Revision history for this message
C de-Avillez (hggdh2) wrote :

Given that this has been resolved as of Gutsy, at least, I am marking this bug fix released.

Changed in evolution:
status: Confirmed → Fix Released
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