E-Mail delivers to Deleted Items folder

We had a shared mailbox where all the mail sent to the mailbox delivered to the deleted items folder. To resolve this do the following:

1. Open Exchange Management Shell
2. Type Get-CalendarProcessing “mailboxname” | fl and press enter
3. If AutomateProcessing shows AutoAccept in the returned results then run the next cmdlet
4. Set-CalendarProcessing “mailboxname” -automateprocessing none
5. Wait for replication and check that Get-CalendarProcessing “mailboxname” | fl shows that it’s set to :none

We verified after running the above that mail delivered to the mailbox deliveres to the Inbox as expected.