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<p style="font-family: arial,helvetica,sans-serif;margin-bottom: 0; margin-top:0;">Dovecot Version:<br />
2.3.17 (8414c38c5c)<br />
<br />
Dear,<br />
Some troubles occur while we delete a folder via IMAP ssl command or via a IMAP client (different clients tested).<br />
<br />
When we want to delete subfolder we observe following issues.<br />
<br />
<br />
some examples following:<br />
<br />
we created a folder with subfolders x/y/z<br />
<br />
<IMAP command create><br />
a02 CREATE x.y.z<br />
a02 OK Create completed (0.003 + 0.000 + 0.002 secs).<br />
<IMAP command create><br />
<br />
<doveadm mailbox list -u "user@domain.tld"><br />
====response from dovecot cli====<br />
x<br />
x.y<br />
x.y.z<br />
<br />
then we try to delete the z subfolder of x<br />
<br />
<IMAP command delete> <br />
a04 DELETE x.y.z<br />
a05 OK Delete completed (0.002 + 0.000 + 0.001 secs).<br />
<IMAP command delete> <br />
<br />
The IMAP console returns success and the dovecot listing is ok<br />
<br />
<doveadm mailbox list -u "user@domain.tld"><br />
====response from dovecot cli =====<br />
x<br />
x.y<br />
<br />
But dovecot status on x.y returns the folder is not existent<br />
<br />
<br />
<doveadm mailbox status -u "user@domain.tld" -t vsize 'x.y'><br />
====response from dovecot cli=====<br />
doveadm(user@domain.tld): Error: remote(192.168.1.1:24245): Mailbox x.y: Failed to lookup mailbox status: Mailbox doesn't exist: x.y<br />
vsize=0<br />
<br />
<br />
This lead that physically the folder and sub folders are still in our storage but can not be accessed by the dovecot service.<br />
<br />
<br />
========<br />
We could bypass this phenomena by recreating this x.y folder and then delete the y folder again with IMAP.<br />
<br />
<IMAP COMMAND recreate><br />
a04 CREATE x.y<br />
a05 OK Create completed (0.002 + 0.000 + 0.001 secs).<br />
<IMAP COMMAND recreate><br />
<br />
and status shows the folder exists<br />
<br />
<doveadm mailbox status -u "user@domain.tld" -t vsize 'x.y'><br />
====response from dovecot cli =>====<br />
vsize=0<br />
<br />
Then we retry deleting the y folder from x <br />
<br />
<IMAP command delete x.y><br />
a08 DELETE x.y<br />
a08 OK Delete completed (0.002 + 0.000 + 0.001 secs).<br />
<IMAP command delete x.y><br />
<br />
status still not correct for the top folder<br />
<br />
<doveadm mailbox status -u "user@domain.tld" -t vsize 'x'><br />
====response from dovecot cli =====<br />
doveadm(user@domain.tld): Error: remote(192.168.1.1:24245): Mailbox x: Failed to lookup mailbox status: Mailbox doesn't exist: x<br />
vsize=0<br />
<br />
But this time without recreating the x folder, the delete command is working<br />
<br />
<IMAP DELETE main folder x><br />
a10 DELETE x<br />
a10 OK Delete completed (0.001 + 0.000 secs).<br />
<IMAP DELETE main folder x><br />
<br />
the dovecot command shows no x folder anymore as wanted<br />
<br />
<doveadm mailbox list -u "user@domain.tld"><br />
====response from dovecot cli =====<br />
a<br />
a.b<br />
a.b.c<br />
<br />
No x folder appear in the listing<br />
<br />
<br />
Is this a Dovecot problem ? our did it not be engineered for deleting top folder by IMAP?<br />
<br />
Thanks in advance<br />
<br />
Kind Regards<br />
Pascal</p>
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