I mostly like Claws-mail, but I've found a few annoyances with it.

The _biggest_ annoyance is:

Clicking on the little triangles to open and close sub-folders is amazingly tricky. Miss it by just one pixel, and it opens the folder instead of opening the sub-tree. And the area of the triangle is TINY. Seems like it would make more sense if everything to the left of the folder icon (ie. where the triangle is, and to the left of it) would manipulate the triangle.


It would also be nice to have a thunderbird-like folder list, where you can pick to say "only show me folders with unread messages" (from all of my accounts). Or "only show me folders I marked as 'favorites'". Or "only show me recently accessed folders".

I think those are my two biggest requests for Claws-mail. Otherwise, I like it just fine. Much better than the built-in email client.