> On 28/05/2026 02:15 EEST Jean-Daniel Beaubien via dovecot > <[email protected]> wrote: > > > Hi, > > I currently have a doveadm backup running my prod and backup server. Both > are currently running 2.3.16, and the following command runs fine: > > sudo doveadm -v backup -u XXXX -P remote:[email protected] > > I am in the process of updating my servers to ubuntu 26.04 which runs > dovecot 2.4.2 and I am running into problems trying to run this command. > > For some reason, it tries to delete the INBOX on the destination and I get > the following error: > dsync-remote(XXXX)<7hkbKDl6F2rlxQAArPp36Q>: Error: brain S: Mailbox INBOX > sync: mailbox_delete failed: The /private/specialuse attribute cannot be > changed > doveadm(228686): Error: Remote command returned error 65: ssh -lXXXX > 192.168.111.XX doveadm dsync-server -uXXXX > > I am not sure what/why this is happening. I read the docs and man page, but > could not find a solution. > > Anyone knows what is happening, and how to solve this? > > Thanks, > > -JD > > ----- Addendum ----- > > Another thing that might help someone else: I had to add a line to the > config file to avoid the -U problem: > > dsync_remote_cmd = "ssh -l%{login} %{host} doveadm dsync-server -u%{user}" > > This seems to already be solved ( > https://dovecot.org/mailman3/archives/list/[email protected]/thread/B3TQFAHCYVVXXEL4Y7KOPKJRWZ5I6X7D/), > but not yet in the ubuntu 26.04 release? > Hi, > I currently have a doveadm backup running my prod and backup server. Both > are currently running 2.3.16, and the following command runs fine: > sudo doveadm -v backup -u XXXX -P remote:[email protected] > I am in the process of updating my servers to ubuntu 26.04 which runs > dovecot 2.4.2 and I am running into problems trying to run this command. > For some reason, it tries to delete the INBOX on the destination and I get > the following error: > dsync-remote(XXXX)<7hkbKDl6F2rlxQAArPp36Q>: Error: brain S: Mailbox INBOX > sync: mailbox_delete failed: The /private/specialuse attribute cannot be > changed > doveadm(228686): Error: Remote command returned error 65: ssh -lXXXX > 192.168.111.XX doveadm dsync-server -uXXXX > > I am not sure what/why this is happening. I read the docs and man page, > but could not find a solution. > Anyone knows what is happening, and how to solve this? > Thanks, > -JD > ----- Addendum ----- > Another thing that might help someone else: I had to add a line to the > config file to avoid the -U problem: > > dsync_remote_cmd = "ssh -l%{login} %{host} doveadm dsync-server -u%{user}" > > This seems to already be solved > > ([1]https://dovecot.org/mailman3/archives/list/[email protected]/thread/B3TQFAHCYVVXXEL4Y7KOPKJRWZ5I6X7D/), > but not yet in the ubuntu 26.04 release? >
Hi! I would recommend looking at our migration guide, https://doc.dovecot.org/latest/core/admin/migration.html This sounds like your config might be interfering here. Aki _______________________________________________ dovecot mailing list -- [email protected] To unsubscribe send an email to [email protected]
