How did that 1.5GB message get into my Exchange environment anyway?

ISSUE: Recently, I had a customer call in an issue where their transport services were failing on all Exchange 2013 servers usually within minutes of each other. Transport would restart on its own and then 15 minutes to an hour later, they would crash yet again. The following errors were showing up in the Event…

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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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