Duplicate mailbox id, mailbox does not exist when attempting to give a new guid

8 Jan 2018


      Hi,
We have one user whose mailbox cannot replicate as below, dovecot
version is: 2.2.13
mail.log shows the below for the user:
Jan  3 16:20:57 hostname dovecot: dsync-server(user): Error: Duplicate
mailbox GUID <guid number> for mailboxes <mailbox name.sub folder> and
<mailbox name.sub folder> - giving a new GUID <guid number> to <mailbox 
name.subfolder>
Jan  3 16:20:57 hostname dovecot: dsync-server(user): Error: Couldn't
update mailbox <sub folder name> GUID: Mailbox doesn't exist: <sub 
folder name>
Looking at their mailbox the folder does exist.
If you are able to assist that would be appreciated.
Kind regards
Daniel Botting
Codethink Ltd