Re: [Evolution] No spam filter in Evolution even though both spamassassin and bogofilter are installed

[Milan Crha <mcrha redhat com>]

On Sun, 2016-10-16 at 19:02 +0200, Steffen Winkler wrote:
> Could someone verify wether the dropdownbox is displayed if only one
> (either spamassassin or bogofilter) junkfilter is installed? If
> that's the case someone should change that. What if someone has
> bogofilter installed but doesn't want to use it in Evolution?

        Hi,
you can have installed both spamassassin and bogofilter programs, still
the evolution takes care of the installed plugins, which call the
programs. If you have installed only one plugin, then the combox
wouldn't make sense, due to showing only one value. Thus it's pre-
selected for you. It's shown only when there is more than one spam
filtering plugin and even atert hat you can pick only one of them, thus
there cannot be used more junk filters at the same moment (that's only
to clarify, I understood that you are already aware of it).

> When I tried to use SpamAssassin evolution told me, upon selecting
> the first e-mail as spam, that /usr/bin/sa-learn was nowhere to be
> found. Which is correct, in ArchLinux it's apparently in
> /usr/bin/vendor_perl/sa-learn.

That's only a default value. You can change it during configure time,
when using --with-spamassassin=/usr/bin/vendor_perl/sa-learn and even
then it's only a default, which can be overwritten in runtime by
setting it into the settings:

   $ gsettings set org.gnome.evolution.spamassassin command "/usr/...."
   $ gsettings set org.gnome.evolution.spamassassin learn-command "/usr/...."

The bogofilter has similar 'command' key in its org.gnome.evolution.bogofilter.

> I dug into the code and decided to comment these two lines out:
>
> if (!e_mail_junk_filter_available (junk_filter))
>                         g_queue_push_tail (&trash, link);
>
> They can be found in e-mail-session.c, method e_mail_session_get_available_junk_filters.

That makes sense. Your distro should configure with added
   --with-spamassassin=/usr/....
   --with-sa-learn=/usr/....
then it'll work out of the box and you'll see the dropdown combo box.
The evolution "considered" the spamassassin junk filter plugin
unavailable, because necessary binaries were not found.

        Bye,
        Milan