mutt-1.5.21p0v0 to read my mail on OpenBSD 5.2 every now and then.
mutt show question marks instead of Cyrillic characters when I open standards-compliant email messages in Russian?
You have to decide on a locale and a character set.
For a list of locales and their corresponding character sets, see
In order to just change the character set, and not the language of the menus or any other options, only