Hi, we have serious problem with saving messages from the Thunderbird to IMAP folders. Messages have corrupted encoding of the non-ASCII characters. But only, if “Content-Transfer-Encoding: 8bit” is used. With “Content-Transfer-Encoding: quoted-printable” everything works well.

 

Unfortunately, the first way is default in the Thunderbird. This isn’t problem with bad settings during viewing of the messages, but really with saving/transporting to IMAP folders. If same message is saved locally in the Thunderbird, it looks fine.

 

I set “mail.strictly_mime“ to the TRUE value in the Thunderbird, but is only temporary workaround.

 

This behaviour started with version 13.4.5598, definitely.

 

I will be grateful for any help.

 

 

Jan Angelovič

 

SM 13.4.5603, TB 31.7.0

 

Some pictures for illustration:

 

http://www.angelovic.cz/mail-view.png
http://www.angelovic.cz/source.png
http://www.angelovic.cz/source-hex.png