It's not true that you can't bootstrap bogofilter with ham from within evolution, it's just not easily discoverable. What you have to do is mark at least one ham message as spam, then go to your spam folder and mark it as ham. From then on it will work.
-- Better spam filtering for evolution https://launchpad.net/bugs/9870 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs