> On 11. Jul 2020, at 22.50, Filip Hajný <fi...@hajny.net> wrote:
>
>> I just created a subfolder in Apple mail. It shows up on the server as
>> .list.Subfolder
>> I drug your message into the folder, and the message shows up in Mail.app
>> and shows up in the subfolder on the server
>>
>> # ls -lnR .lists.Subfolder [10:40]
>> [/usr/local/virtual/krem...@kreme.com/Maildir]
>> total 56
>> drwx------ 2 89 89 512 Jul 11 10:41 cur
>> -rw------- 1 89 89 21 Jul 11 10:41 dovecot-keywords
>> -rw------- 1 89 89 109 Jul 11 10:41 dovecot-uidlist
>> -rw------- 1 89 89 1924 Jul 11 10:41 dovecot.index.cache
>> -rw------- 1 89 89 868 Jul 11 10:41 dovecot.index.log
>> -rw------- 1 89 89 0 Jul 11 10:35 maildirfolder
>> drwx------ 2 89 89 512 Jul 11 10:35 new
>> drwx------ 2 89 89 512 Jul 11 10:41 tmp
>>
>
> I’ve created a test server and found out that the driving factor is what the
> namespace `separator` is set to. If set to /, Apple Mail gets confused and
> URL-encodes it when creating a new folder. If the separator is blank (as set
> by default) or set to e.g. a dot, everything works just fine.
>
> Based on example and docs I found, a slash character should be good or even
> recommended, suggesting this is some kind of bug in Apple Mail, but I’m not
> versed enough in the IMAP related RFCs to understand.
I'm Apple user. I have separator set to / and I can create folders just fine
without any encoding. Can you please record imap rawlogs where it shows what
command your Mail.App is sending?
Sami