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Haneef Ibn Ahmad's avatar
Haneef Ibn Ahmad
Iron Contributor
Mar 09, 2018

How to Merge/Consolidate Exchange Online mailboxes?

We're in the process of moving a lot of users from a cPanel-based email server (dovecot server). Since cPanel-based email server does not support email aliases, multiple user accounts were created fo...
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Haneef Ibn Ahmad's avatar
Haneef Ibn Ahmad
Iron Contributor
Mar 09, 2018

Hi Nuno,

 

Thanks for that.

 

Will those 3rd party software merge the mailboxes in Exchange Online itself or will it merge on a local machine and then upload it?

 

Can you suggest me some names for both options please?

 

Thanking you,

 

NunoAriasSilva's avatar
NunoAriasSilva
MVP
Mar 09, 2018

Hi Hannef,

 

It merge to the destination, Ex (You have 3 source email and one destination mailbox). For those 2 options you have Bittitan, among others.

  • Haneef Ibn Ahmad's avatar
    Haneef Ibn Ahmad
    Iron Contributor
    Mar 09, 2018

    Thanks for that.

     

    I just had another idea based on a suggestion in https://serverfault.com/questions/900914/how-to-merge-consolidate-exchange-online-mailboxes?noredirect=1#comment1164988_900914.

     

    Create john.doe@contoso.com with aliases john.d@contoso.com and j.doe@contoso.com. Then in the https://support.office.com/en-ie/article/migrate-other-types-of-imap-mailboxes-to-office-365-58890ccd-ce5e-4d94-be75-560a3b70a706, use new rows to import these mailboxes.

     

    Will Exchange Online recognise that these email addresses are aliases of the same account and import the emails accordingly?

     

    Thanks,

    • NunoAriasSilva's avatar
      NunoAriasSilva
      MVP
      Mar 09, 2018

      Hi Haneef,

       

      With third party it will work with IMAP import job could not work, because it match the primary smtp address unless you change it in different jobs.

      • Haneef Ibn Ahmad's avatar
        Haneef Ibn Ahmad
        Iron Contributor
        Mar 09, 2018

        Thanks for that information.

         

        I also wanted to ask, this support article only has 3 columns in the example: https://support.office.com/en-ie/article/migrate-other-types-of-imap-mailboxes-to-office-365-58890ccd-ce5e-4d94-be75-560a3b70a706

         

        However, I would like to know, if it is possible to migrate a source email address to a different destination email address and a subfolder within that? So, that would mean additional columns: DestinationEmailAddress, DestinationSubFolder

         

        Thanks,

         

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