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Deleted's avatar
Deleted
Feb 08, 2018
Solved

O365 Group Mailbox Reports?

I'm trying to compile a PS report that will show me the size of each group mailbox within my O365 Groups.  Get-mailboxstatistics works for individual group mailboxes using the primarysmtpaddress, Ide...
Mailboxes
Office 365 Groups
powershell
Reports
  • VasilMichev's avatar
    VasilMichev
    Feb 08, 2018

    The only reason you would need an EO2 license for shared/room mailbox is if you have enabled hold, and if you are applying a license anyway, you should just make it a user mailbox.

     

    Onto the Groups question, you can simply use the "calculated property" method:

     

    Get-UnifiedGroup  | select DisplayName,Recipient*,@{n="Size";e={(Get-MailboxStatistics $_.Identity).TotalItemSize}}

DisplayName RecipientType                  RecipientTypeDetails Size
----------- -------------                  -------------------- ----
Unified     MailUniversalDistributionGroup GroupMailbox         1.314 MB (1,377,400 bytes)
First group MailUniversalDistributionGroup GroupMailbox         7.702 MB (8,076,248 bytes)

    You can add other properties as needed, but in general is better to write a proper script instead of using oneliners and the pipeline.

     

VasilMichev's avatar
VasilMichev
MVP
Feb 08, 2018

The only reason you would need an EO2 license for shared/room mailbox is if you have enabled hold, and if you are applying a license anyway, you should just make it a user mailbox.

 

Onto the Groups question, you can simply use the "calculated property" method:

 

Get-UnifiedGroup  | select DisplayName,Recipient*,@{n="Size";e={(Get-MailboxStatistics $_.Identity).TotalItemSize}}

DisplayName RecipientType                  RecipientTypeDetails Size
----------- -------------                  -------------------- ----
Unified     MailUniversalDistributionGroup GroupMailbox         1.314 MB (1,377,400 bytes)
First group MailUniversalDistributionGroup GroupMailbox         7.702 MB (8,076,248 bytes)

You can add other properties as needed, but in general is better to write a proper script instead of using oneliners and the pipeline.

 

  • rayman3115's avatar
    rayman3115
    Copper Contributor
    Jul 15, 2019

    VasilMichev, does the EO2 license requirement for hold/retention apply to shared mailboxes created for O356 Groups and/or Teams as well?

  • Deleted's avatar
    Deleted
    Feb 08, 2018

    Thanks VasilMichev.  The license question came up because our shared/resource MBX's are on hold via the 'Unified Retention Policy' and company policy.  

     

    AFAIK the Unified Retention Policy is auto-applied to all new <licensed> mailboxes.  With that in mind, does that change the licensing calculus of a group mailbox if my company is expecting its contents (including SPO site contents) to be held and discoverable?  

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