Email destined for recently moved Modern Public Folders are going to the Poison queue.

Scenario I recently worked a case where the customer had moved all of the public folders from one Modern Public Folder mailbox to another and deleted the old Public Folder mailbox. This was on Exchange 2013 CU9. After he did that, email destined for what were previously mail-enabled Public Folders started to show up in the…


Only seeing first receive event when doing message tracking against a public folder that was migrated to O365 from Legacy Exchange

In Exchange 2010 and older (legacy exchange), when you migrate a public folder to O365, it makes a change that causes message tracking to only show the initial receive event when running message tracking against the legacy namespace. Scenario A Public Folder with a Primary SMTP email address of PF1@contoso.com gets migrated to O365. You…

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