[Dovecot] irregular problem on outlook + imap

[Michael M. Slusarz]

Quoting Michele Petrazzo - Unipex <michele.petrazzo at unipex.it>:

>>> * LSUB () "." " folder.with.dots and spaces and numbers"

[snip]

>>> lylu APPEND "folder.with.dots and spaces and numbers" (\Seen)
>>> "30-Nov-2009 10:34:00 +0100" {280844}
>>> lylu NO [TRYCREATE] Mailbox doesn't exist: folder.with.dots and spaces
>>> and numbers
>>
>> This means it doesn't really exist, even though it's subscribed.
>>
> Do you know when/why this can happen?

The IMAP4rev1 spec specifically allows for a mailbox to be subscribed  
without existing.  The list of subscribed mailboxes has nothing to do  
with the list of existing mailboxes (in other words, the results from  
LSUB are not a subset of the results from LIST).

michael