[cisco-voip] Unity - old mailboxes not being deleted

[Peter Pauly]

I have lots of old mailboxes in the Exchange mailbox store (VM only)
that won't go away.

Running "Run Cleanup Agent" results in this:
Cleanup of deleted mailboxes that are past the retention date is
finished on database "First Storage Group\Mailbox Store (UNITY01)".
  0 deleted mailboxes (0 KB) have been removed.
  0 deleted mailboxes (0 KB) have been retained.

Limits on the mailbox store say to keep deleted items for 0 days and
keep deleted mailboxes for 0 days.