Hi, I've noticed that when displaying an HML message with a charset different than sqwebmail one's (utf-8 in my case), non ascii characters are not converted, so they are badly rendered. It work fine when the message is a multipart/alternative and the "Display HTML E-Mail" preference is off.
I've looked in folder.c to try a patch, but theyre is a big stack of filters, so it's uneasy for me to make a clean fix.
