we are getting a lot of “[warning] K-1515: Object not found unknown user” messages in server.log.
Kopano-admin -L gives a list of all groups and the defined “user” is listed there.
Groups are often used for sending distributed mails to a group of users.
I cant find a jira ticket or a forum post with K-1515 errors.
i dont think this error should come up if the group is known to kopano. Can you implement in the next version that kopano is checking groups aswell not just users?