Users on one mailbox server are facing OOO issue, even after turning off the OOO it still sending the OOO message. I have moved the user mailbox to different database on different server and issue got resolved. We have 5 databases on one mailbox server and all are having the same problem, non of the user has reported any issue which are on other mailbox servers. For me it looks to be server side issue rather than database. Please help me to resolve this issue.
We are on Exchange SP1 RU6