yEnc has a fair share of problems related to reliable encoding and decoding for some character sets (UTF-8 for example). Normally this is solved with the MIME t

yEnc has a fair share of problems related to reliable encoding and decoding for some character sets (UTF-8 for example). Normally this is solved with the MIME types, but yEnc is not officially registered. Nor does it have an official RFC standard. base64 on the other hand "just works".