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    Outlook 2016 Export to PST Missing a Lot of Data

    IT Discussion
    exchange office 365 outlook outlook 2016 ms office 2016 email
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    • NerdyDadN
      NerdyDad
      last edited by

      Is a Windows box available? Install Veeam's O365v2 backup to a repository. Free for up to 10 users and you will get everything, mailbox and SharePoint. Set it up for the customer and it doesn't give them very many options to mess up.

      https://www.veeam.com/backup-microsoft-office-365.html

      scottalanmillerS DanpD 2 Replies Last reply Reply Quote 1
      • scottalanmillerS
        scottalanmiller @NerdyDad
        last edited by

        @nerdydad said in Outlook 2016 Export to PST Missing a Lot of Data:

        Is a Windows box available? Install Veeam's O365v2 backup to a repository. Free for up to 10 users and you will get everything, mailbox and SharePoint. Set it up for the customer and it doesn't give them very many options to mess up.

        https://www.veeam.com/backup-microsoft-office-365.html

        Yes, we are using Windows from the client's side.

        Veeam's O365 can be used from the user perspective? That's super handy!

        NerdyDadN 1 Reply Last reply Reply Quote 0
        • NerdyDadN
          NerdyDad @scottalanmiller
          last edited by

          @scottalanmiller Unfortunately, there is no "User interface" apart from the admin interface, but there is not a lot to the program except for having a local repo, connecting O365, selecting the user along with a couple of other requirements and hitting start.

          1 Reply Last reply Reply Quote 1
          • PhlipElderP
            PhlipElder @scottalanmiller
            last edited by PhlipElder

            @scottalanmiller said in Outlook 2016 Export to PST Missing a Lot of Data:

            We have an Office 365 account with Outlook 2016 attached and we need to archive the entirety of a mailbox to a PST file. When we do so, the PST is very large, 8GB or bigger. And it gets some stuff. But loads of emails are missing, too.

            Outlook is configured to download all, not headers or anything like that. Cached Mode is on, and retention set to all. Slow link detection is off. Folders have been updated.

            And yet still, we can go into a folder in the Inbox, and it still says "Click here to download more from Exchange" or whatever. If we click that, email shows up. Navigate away and back, and it is black again. Export it, and it is blank.

            How can you get Outlook to get all of the email, not just some?

            On-premises we'd run the Export-Mailbox PoSh in the Exchange Console. Is there an ability to do that in O365 (all of our hosted mailboxes are third party)?

            Another option would be a MAPI sync tool that could do a full pull. EDIT: Veeam is da bomb. :0)

            scottalanmillerS 2 Replies Last reply Reply Quote 1
            • scottalanmillerS
              scottalanmiller @PhlipElder
              last edited by

              @phlipelder said in Outlook 2016 Export to PST Missing a Lot of Data:

              On-premises we'd run the Export-Mailbox PoSh in the Exchange Console. Is there an ability to do that in O365 (all of our hosted mailboxes are third party)?

              Yes, we would, too. We looked into that command. And the answer is "no", O365 doesn't allow that to be run 😞

              1 Reply Last reply Reply Quote 0
              • scottalanmillerS
                scottalanmiller @PhlipElder
                last edited by

                @phlipelder said in Outlook 2016 Export to PST Missing a Lot of Data:

                Another option would be a MAPI sync tool that could do a full pull. EDIT: Veeam is da bomb. :0)

                Yeah, that seems like the best answer.

                1 Reply Last reply Reply Quote 0
                • jt1001001J
                  jt1001001
                  last edited by

                  Have you tried deleting/clearing out the local cache/.OST file, then letting it rebuild, then export to PST?

                  1 Reply Last reply Reply Quote 0
                  • DanpD
                    Danp @NerdyDad
                    last edited by

                    @nerdydad said in Outlook 2016 Export to PST Missing a Lot of Data:

                    Install Veeam's O365v2 backup to a repository. Free for up to 10 users

                    I wasn't aware that they had a free options. Thanks for bringing this to my attention!

                    1 Reply Last reply Reply Quote 1
                    • BRRABillB
                      BRRABill
                      last edited by

                      That BitTitan product that I ended up using for my migration was da bomb. Maybe check them out as well.

                      1 Reply Last reply Reply Quote 1
                      • matteo nunziatiM
                        matteo nunziati @scottalanmiller
                        last edited by

                        @scottalanmiller said in Outlook 2016 Export to PST Missing a Lot of Data:

                        @obsolesce said in Outlook 2016 Export to PST Missing a Lot of Data:

                        You can right-click on the mailbox, or a folder, and in properties, you can see how much data is there versus on the Exchange server.

                        Most is there, for sure. But definitely not "all".

                        Confirm. I got always this end result. This is just best effort. Not complete at all.

                        scottalanmillerS 1 Reply Last reply Reply Quote 1
                        • scottalanmillerS
                          scottalanmiller @matteo nunziati
                          last edited by

                          @matteo-nunziati said in Outlook 2016 Export to PST Missing a Lot of Data:

                          @scottalanmiller said in Outlook 2016 Export to PST Missing a Lot of Data:

                          @obsolesce said in Outlook 2016 Export to PST Missing a Lot of Data:

                          You can right-click on the mailbox, or a folder, and in properties, you can see how much data is there versus on the Exchange server.

                          Most is there, for sure. But definitely not "all".

                          Confirm. I got always this end result. This is just best effort. Not complete at all.

                          That's just crappy, especially as Microsoft themselves recommend it.

                          1 Reply Last reply Reply Quote 1
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