Category Archives: MFCMAPI

What’s the Real Size of Exchange Online Mailboxes?

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The Office 365 Substrate uses Exchange Online mailboxes to store a lot of data that users never see. The data is used by the substrate for different purposes, mostly to make it easier for features to get to relevant information. Microsoft doesn’t document exactly what is stored, where it is stored, and how it is used, so we must poke around in the innards of mailboxes to see what we can discover.

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What’s the Real Size of Exchange Online Mailboxes?

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The Office 365 Substrate uses Exchange Online mailboxes to store a lot of data that users never see. The data is used by the substrate for different purposes, mostly to make it easier for features to get to relevant information. Microsoft doesn’t document exactly what is stored, where it is stored, and how it is used, so we must poke around in the innards of mailboxes to see what we can discover. Continue reading What’s the Real Size of Exchange Online Mailboxes?→

The Magic Behind OWA Likes

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OWA is the only Outlook client that supports “Likes.” This begs the question how OWA supports likes and where the information about likes is stored. Some probing using easily accessible tools reveals the answer. You might think that the answer only interests Office 365 Trivial Pursuit nerds, but it’s actually of real interest to eDiscovery investigators.

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Using Office 365 IM Conversation Records for eDiscovery

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Teams and Skype for Business Online both capture IM conversation records that can be found by Office 365 eDiscovery (content) searches. All of which is good, but if you ever get around to performing eDiscovery and need this information, you’ll find that Skype for Business Online conversation transcripts are easier to use than the individual copies of conversation contributions captured by Teams.

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The Mysterious Files Folder and its Importance to Office 365 Apps

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Office 365 with Teams

Many differences exist between the on-premises and cloud worlds. The Files folder is one of Office 365’s unique features. The folder exists in user mailboxes to hold information about “file-oriented experiences.” As it turns out, apps like Delve, SharePoint, and Office 365 Groups like to display file information to users, but they need a fast and efficient way to get to that data. Files is the answer!

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