Some more info:
I have installed all related "locale" packages such as glibc-locale-el, glibc-localedate-el-gr+euro, gtk+-locale-el, localebase-el-gr-iso-8859-7, localedef, and also sylpheed-locale-el, mutt-locale-el. I tried also setting env variables LC_CTYPE and LANG to el_GR. Whatever I tried, I get the same result:
- in mutt greek charaters in message subjects appear as "?" and in message bodies as escapes ("\303\355...")
- in syplheed greek characters do not appear at all.
It is strange since "Bitstream vera" should contain greek glyphs (unless they have been removed because of size? - I doubt it).
I would appreciate greatly any help.