Folder sync issue

[mchobbel]

Expected behavior

After I created a new IMAP-folder in Thunderbird this folder should appear in Nextcloud.

Actual behavior

The new IMAP-folder does not show in Nextcloud.

The only way for me to get the new folder in Nextcloud is by removing the IMAP-account from nextcloud and then adding it again.

Mail app

**Mail app version: ** 1.9.5

**Mailserver or service: ** Dovecot

Server configuration

Operating system De: Debian 10

Web server: Apache

Database: MariaDB

PHP version: 7.4.6

Nextcloud Version: 21.0.2

Client configuration

Browser: : Firefox 88

Operating system: Linux

[miaulalala]

Hi! Do you have anything in you horde_imap.log file when you search for the newly created folder name?

[mchobbel]

No errors in the horder_imap.log. But what is interesting: after toggling the Show only subscribed checkbox on and off I can see the client requesting the folder list :

C: 2 LIST () "" (*) RETURN (SUBSCRIBED SPECIAL-USE)

and in the server-response I can see the new folder-name is present. But still it doesn't appear in the UI.

Nb. I also used the Mutt Imap client to verify that the server is working correct.

[miaulalala]

Can you check your oc_mail_mailboxes table for the entry that belongs to this folder and tell me what it says?

[mchobbel]

The new folder is not present in oc_mail_mailboxes

[miaulalala]

Can you check your Dovecot namespaces and check what is set for the auto option and special_use option? Are you subscribed to the folder?

[mchobbel]

Yes, I am subscribed to the folder. Let me add IMAP response to the LIST command:

S: * LIST (\Subscribed \UnMarked) "/" subfolder2
S: * LIST (\Subscribed \UnMarked) "/" sub1
S: * LIST (\Subscribed \UnMarked \Trash) "/" Trash
S: * LIST (\Subscribed \UnMarked \Sent) "/" Sent
S: * LIST (\Subscribed \UnMarked) "/" Verzonden
S: * LIST (\Subscribed \UnMarked) "/" ost_done
S: * LIST (\Subscribed \UnMarked) "/" INBOX/test1
S: * LIST (\Subscribed) "/" gdw_nl
S: * LIST (\Subscribed) "/" gdw_nl2
S: * LIST (\Subscribed \UnMarked) "/" gdw_nl2/stest3
S: * LIST (\UnMarked) "/" gdw_nl2/test3
S: * LIST (\Subscribed \UnMarked) "/" gdw_nl2/test2
S: * LIST (\NonExistent) "/" gdw_nl3
S: * LIST (\Subscribed \UnMarked) "/" gdw_nl3/done1
S: * LIST () "/" test1_nc_qf
S: * LIST (\UnMarked) "/" test1_nc_qf/done2
S: * LIST (\UnMarked) "/" test1_nc_qf/done
S: * LIST (\NonExistent) "/" Egroupware_tot_okt_2020
S: * LIST (\Subscribed) "/" INBOX
S: 2 OK List completed (0.005 + 0.000 + 0.004 secs).
>> Command 2 took 0.005 seconds.
C: 3 STATUS subfolder2 (MESSAGES RECENT UIDNEXT UIDVALIDITY UNSEEN)
S: * STATUS subfolder2 (MESSAGES 1 RECENT 0 UIDNEXT 2 UIDVALIDITY 1610536818 UNSEEN 0)
S: 3 OK Status completed (0.001 + 0.000 secs).
>> Command 3 took 0.0041 seconds.

Here you can see that subfolder2 (yes, this is the one) has the Subscribed flag and has no special use flags. ( interesting to see that the client does a status-request for subfolfder2 i.e. this folder is not completely ignored by Nextcloud.)

As for the auto setting. I have no auto settings configured in my dovecot config. The auto related stuff in conf.d/15-mailboxes.conf is commented out

[miaulalala]

Thanks, that will help a lot! I'll debug some more and get back to you.

[miaulalala]

Hi, has the folder appeared now? I've found out that there is a two hour delay between folder syncs at the moment, but we're working on creating a force sync button so this process can be triggered manually.

[mchobbel]

Yep. It's there now alright! Thanks for working on this. It would be a nice improvement indeed.