“Remote server returned 554.5.2.0 storedrv.deliver.exception:wrongserverexception.mapiexeptionmdboffline”.

[solved] how to resolve error “Remote server returned 554.5.2.0 storedrv.deliver.exception:wrongserverexception.mapiexeptionmdboffline”.

Problem User gets a NDR “non delivery reports” when sending a message to a particular user in Office365 and the…