Find out who created a mailbox in Office 365

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  Enable mailbox auditing in Office 365:
  https://technet.microsoft.com/en-us/library/dn879651.aspx
  
  Search the audit log in the Office 365 Security & Compliance Center:
  https://support.office.com/en-us/article/Search-the-audit-log-in-the-Office-365-Security-Compliance-Center-0d4d0f35-390b-4518-800e-0c7ec95e946c
  
  Manage Mailbox Audit using PowerShell | Office 365:
  http://o365info.com/manage-mailbox-audit-using-powershell/

  Hope you find this information useful.
  

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  Solutions for Active Directory to audit, monitor and manage.

  Thursday, June 8, 2017 10:42 AM
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  Hello Roman

  Thank you for the reply.

  Unfortunately the mailbox I am referring to is a shared one and audit for shared mailboxes is valid 90 days.

  So it will not help me.

  Thank you anyway

  Friday, June 9, 2017 8:41 AM
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  Unfortunately the mailbox I am referring to is a shared one and audit for shared mailboxes is valid 90 days.

  Then I'm afraid that we might not be able to find out who created this shared mailbox.

  Anyway, you might also want to try in the dedicated Exchange Online forum below:

  https://social.technet.microsoft.com/Forums/exchange/en-US/home?forum=onlineservicesexchange

  Regards,
  

  Ethan Hua

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  • Edited by Ethan HuaMicrosoft contingent staff Friday, June 9, 2017 9:49 AM
  • Proposed as answer by Ethan HuaMicrosoft contingent staff Tuesday, June 13, 2017 6:49 AM
  • Marked as answer by Ion Vlad Orascu Friday, June 16, 2017 7:31 PM

  Friday, June 9, 2017 9:49 AM