The Grumpy Editor reviews Claws Mail

FWIW, font rendering in the screenshot looks fine here @ 100dpi (1600x1200 
on a 21" CRT, ~16" horizontal viewable).  Even at double magnification, I 
don't see a problem.  @ 400% magnification I can, and reducing from there 
to 300% I can, since I know where and what for to look, but at 200% again, 
I still see no problem, and that's still double my usual magnification.

Are you perhaps stretching to a non-native resolution on an LCD, thus 
introducing artifacts there?  Or maybe you're just running say 640x480 
standard TV resolution on a 40" TV or something?  Or maybe it's simply 
personal preference, but I know I see no issues here, even @ double my 
usual magnification.