[Bug] IMAP folder names in non-latin script garbled

[krackout]

Since I'm very happy with nmail I started using it for my business e-mail account also. The company I work for uses office365 with IMAP enabled thankfully. The locale is Greek, which is used for IMAP folder names also. Perhaps switching locale from office365 web interface settings (for display language) would change folder names also - not sure about it. But I'm posting here first, in case it's easily solvable.

The issue is: The IMAP folder names in non-latin script are garbled, at least for Greek. I don't know if IMAP folder names are encoded in Unicode, or 8-bit ISO8859-7 / Win1253 and if it's vendor/imap server dependent.

For example,
Απεσταλμένα is shown as &A5EDwAO1A8MDxAOxA7sDvAOtA70DsQ-

[d99kris]

Hi @krackout - thanks for reporting! I can reproduce it here too, by creating IMAP folders with non-ASCII characters. Apparently it's a form of custom UTF-7 encoding, standardized for IMAP folder name use.

It's a bug in nmail so I'll look into fixing it.

[krackout]

Great, thank you! A point to mention, on main.conf file, will it be possible to have a directive like for example, sent=Απεσταλμένα ? I'm wondering, because I edit main.conf file as UTF-8, whilst as per your discovery, IMAP folder names are custom UTF-7 encoding.

[d99kris]

It's a good thing you mentioned this, it should work - the conf files are all treated as UTF-8, but I'll make sure to test this as part of the fix.

[d99kris]

This should be fixed with above commit. Please let me know if you're still encountering any issues.

[krackout]

It's fixed. Working fine, proper list of IMAP folders in Greek and directives as sent=Απεσταλμένα also. Thank you!