[i18n] International chars in emails?

[Carl Boberg]

Here is the problem:

Mail from yahoo.com, hotmail.com and others like them usually send mail with
encoding in us-ascii even though it is chars in them that are of 
international
type (like åäö). When theese mails come in to IMP 4 their international
chars  show up as ?.
If I then use the webbrowsers view sttings for char encoding and set it to
us-ascii the ? turns in to their correct letters. But if I do that the 
rest of
IMPs menus and such that have international chars get screwed up...
So it either look at the odd email correct with forced encoding setting 
in the
browser or view most emails and IMP correctly (in UTF-8 I think) but 
then odd
email looks funny.

I have tested this thoroughly.

Question is; Is this also affecting the way IMP/Horde verifies passwords 
against
/etc/passwd? Since my original problem was that users with international 
swedish
chars in his/her password couldnt login.

Any ideas what to make of this?

/ Cheers
Carl