hello,
recently when I disable mailbox on my exchange 2013 this are not connectable again (there isn't any mailbox I can select to connect to another user)
I opened a topic on this forum https://social.technet.microsoft.com/Forums/office/en-US/e6c053ed-f247-483b-84ec-6fb31ffe6ec1/disabled-mailbox-missed?forum=exchangesvradmin#d042bda6-7738-4b88-a3bd-6bf3912460f1
the solution works but the problem happen again for every user I disable (I'm migrating some mailboxes)
in the past I haven't ever seen this problem, can some one help me why this happen and how to sort it out?