Problem
If you configured a wrong oxImapServer for your mail domain.
Solution
Workaround from this Bug
Bug 48432
> Actual example for the workaround:
>
> context id: 10 (default)
> context admin user: oxadmin (default)
> context admin user password: univention
> mail domain: ucs.local
> new imap server: mail.ucs.local
Please use the secrets file:
for u in $(/opt/open-xchange/sbin/listuser -c 10 -A oxadmin -P "$(</etc/ox-secrets/context10.secret)" | grep 'ucs.local' | awk '{print $1}'); do
/opt/open-xchange/sbin/changeuser \
-c 10 -A oxadmin \
-P "$(</etc/ox-secrets/context10.secret)" \
-i "$u" --imapserver 'mail.ucs.local'
done
The "grep 'ucs.local'" has to be adjusted, to it matches only to the wrong entries: e.g. "grep '@wrongimap.server.example.com'"
And to change the setting in the UDM:
udm oxmail/oxdomain list
Copy the dn you want to modify and then:
udm oxmail/oxdomain modify --dn cn=foo.bar,cn=domain,cn=mail,dc=hub,dc=foo,dc=bar --set oxImapServer=mail.foo.bar.de