Comment 13 for bug 292739

I use server-side filtering, so I have completely disabled filtering in Evolution. But I have enabled checking for new mail in every folder, since I get mail delivered directly to the folders by the server.

If you look at the upstream bug tracking page, at http://bugzilla.gnome.org/show_bug.cgi?id=558883, you'll see that there are new patches addressing issues like the one you seem to have. Basically it seems that Evolution is rescanning every single email in every single folder when checking for new mail, and maybe it does the same when filtering.

I am really disapponted by the incredible number of crippling bugs that this update of Evolution has introduced.