Exchange 2013 - User Mailbox send as permissions disappearing
Posted on 2013-11-25
I have an Exchange 2013 installation - Version 15.0 ¿(Build 712.24)¿ in a Client's organisation, which was upgraded from 2010 by placing a new Exchange Server and moving the mailboxes. The 2010- Version 14.3 ¿(Build 123.4)¿ - is still active (not got round to taking it out yet as the Client is in a critical phase of project at moment and cannot have possibility of delay/disruption).
We have an ongoing problem that if we add in a send as permission to a mailbox, either from the ECP or via AD advanced permissions, some time later (10mins to 1hr), the permission is gone again.