My locale is zh_TW.Big5. Surely I often receive mail encoded in big5. Mutt does a good job in decoding the Chinese text in Subject and From, which appears rawly as "=?big5?B?........=?=" (base64. quoted-printable OK, too).
But I found mutt doesn't decode them if such encoding happens at attachment. Content-Type: image/gif; name="=?big5?B?pN+4Zy5naWY=?=" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="=?big5?B?pN+4Zy5naWY=?=" I did experiments and sent me a file in attachment with Chinese filename. Mutt displays OK. But it uses a different and strange encoding: ontent-Type: text/html; charset=big5 Content-Disposition: attachment; filename*=big5''%A6p%A6%F3%BF%EF%A4%40%B1i%A6n%A7%C9%AD%DD%BD%CD%BA%CE%AB%BA%2Ehtm Content-Transfer-Encoding: 8bit What's the matter? best regards, charlie