Macos – Where does Mac Outlook 2016 stores Mails (On the Mac)

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I would like to backup all Folders/Mails that are stored locally under »On my Mac« in Mac Outlook 2016. I don’t want to backup the complete Outlook Profile over and over again. Instead only archived messages that are moved to the »On my Mac« section should be backed up.

As far as I can see, they are mixed up with all my Exchange/IMAP accounts in /Users/me/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/Main Profile/Message Sources

and also

/Users/me/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/Main Profile/Messages

Unfortunately it’s not possible to create a local archive on a separate volume e.g. on Windows Outlook (PST File). Where does Mac Outlook 2016 stores Mails (On my Mac)? This is a total nightmare for system administrations…

Best Answer

You will have to look for something like:

/Users/me/Library/Group Containers/123THEID.Office/Outlook/Outlook 15 Profiles/Main Profile/Data/Messages/

You will find a lot of folders with numerical names, from 0 to 255. There doesn't seem to be any alphabetical or chronological logic to it, so it's all a dumb storage with the mapping done in some other folder or DB. A good candidate is …/Main Profile/Data/Outlook.sqlite.

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