Anyone else using OAuth 2.0 for the IMAP connection between NuPoint UM and O365 and having message retention problems? I've been working with Mitel and Microsoft for a couple of weeks on issues where NPUM polls for the status of a message sent to a user, O365 incorrectly reports back that the message does not exist in the user's inbox (even though it is there), so NPUM is deleting the message from the voice mailbox. I would think if this was a bug on Mitel or MS, someone else would be seeing this as well.
