[Bug 37878] bogofilters trumps spamassassin on dapper upgrade

[David Allouche]

Public bug reported:

Affects: evolution (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed


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.
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bogofilters trumps spamassassin on dapper upgrade
https://launchpad.net/malone/bugs/37878