Quoting "Valery V. Sedletski" <valer...@afterlogic.com>:
But I tried to create a fresh account in Dovecot (not migrated from
Courier), and it
still shows a intermixed folder order:
a list "" *
* LIST (\HasNoChildren) "/" "Spam"
* LIST (\HasNoChildren) "/" "Sent"
* LIST (\HasNoChildren) "/" "Drafts"
* LIST (\HasNoChildren) "/" "Trash"
* LIST (\HasNoChildren) "/" "INBOX"
* LIST (\HasNoChildren) "/" "Pub"
a OK List completed.
Why does this matter? IMAP does NOT enforce any sort of required
sorting order, and no IMAP client can assume a sort order. So
enforcing a sort order on the server is just a waste of resources.
Just a cosmetic problem, of course. Some IMAP clients do sort folders,
others do not, so they show different folder sort order in Dovecot, if
migrated from Courier (Courier seems to sort folders, so that the system
ones appear first). We just needed a seamless migration.
Still don't see the relevance to a migration though. If you have
software that assumes that mailboxes are listed in some sort of order,
that is just broken software.
FWIW, this is completely legal IMAP output also (albeit inefficient):
a list "" *
* LIST (\HasNoChildren) "/" "Spam"
* LIST (\HasNoChildren) "/" "Sent"
* LIST (\HasNoChildren) "/" "Spam"
* LIST (\HasNoChildren) "/" "Spam"
* LIST (\HasNoChildren) "/" "Drafts"
* LIST (\HasNoChildren) "/" "Trash"
* LIST (\HasNoChildren) "/" "Spam"
* LIST (\HasNoChildren) "/" "Spam"
* LIST (\HasNoChildren) "/" "Spam"
* LIST (\HasNoChildren) "/" "Spam"
* LIST (\HasNoChildren) "/" "INBOX"
* LIST (\HasNoChildren) "/" "Pub"
a OK List completed.
So, it is legal to even list each folder several times?
Sure. Just like this is legal IMAP:
a FETCH 1 (UID)
* 2 FETCH (UID 100)
* 3 FETCH (FLAGS (\Seen))
* 1 FETCH (UID 50)
* 1 FETCH (UID 50)
* 1 FETCH (UID 50)
* 2 FETCH (UID 100)
a OK FETCH complete
Once again: not efficient, but perfectly acceptable.
michael
