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Cryptic and Obscure user accounts in AD ?

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Tuesday, January 19, 2016 9:46 PM

Hi,

I'm a newbie here in managing the new Exchange Server 2013 organization, hence can someone please clarify each of the highlighted entries in my AD please:

I only know about System Mailbox account but what about the rest of the disabled account ?

Can I move them to custom OU for cleanup with no effect on email flow ?

Thanks.

/* Server Support Specialist */

All replies (4)

Tuesday, January 19, 2016 11:55 PM ✅Answered

Hi,

There are 5 arbitration mailboxes created when Exchange is installed:                                                                                    

  • SystemMailbox{1f05a927-2346-4b0f-8c8c-6bf7e1f25979}                                                                    
  • SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c}                                                                    
  • SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9}                                                                    
  • Migration.8f3e7716-2011-43e4-96b1-aba62d229136                                                                         
  • FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042   

The discovery search mailbox is used for multi-mailbox searches and the Exchange Online application account would be involved in a Hybrid setup. 

Thanks.

Please mark as an answer if this answers your question

Mark Gossa

MCSE 2003, MCITP Enterprise Administrator 2008 R2, MCSA 2012 R2, MCTS Exchange 2010, MCTS SQL 2012, MCTS SharePoint 2007, VCP4, VCP5, CCNA

Blog: http://markgossa.blogspot.com   LinkedIn:    Twitter:   

Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

Thursday, January 21, 2016 2:07 PM ✅Answered

Hi ,

Agree with Mark, Microsoft is also not recommended to move these AD accounts, that may cause some indefinite issue.

In addition, I also recommend you refer to the following articles to understand these mailboxes:

Arbitration Mailbox Exchange 2010 and 2013

 What is an arbitration mailbox

Please note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. And the changes made in the above blog is not supported officially by Microsoft.

Best regards,

Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected].

Niko Cheng
TechNet Community Support

Wednesday, January 20, 2016 12:16 AM

Hi,

There are 5 arbitration mailboxes created when Exchange is installed:                                                                                    

  • SystemMailbox{1f05a927-2346-4b0f-8c8c-6bf7e1f25979}                                                                    
  • SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c}                                                                    
  • SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9}                                                                    
  • Migration.8f3e7716-2011-43e4-96b1-aba62d229136                                                                         
  • FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042   

The discovery search mailbox is used for multi-mailbox searches and the Exchange Online application account would be involved in a Hybrid setup. 

Thanks.

Please mark as an answer if this answers your question

Mark Gossa

MCSE 2003, MCITP Enterprise Administrator 2008 R2, MCSA 2012 R2, MCTS Exchange 2010, MCTS SQL 2012, MCTS SharePoint 2007, VCP4, VCP5, CCNA

Blog: http://markgossa.blogspot.com   LinkedIn:    Twitter:   

Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

Mark,

Can I move it to somewhere else from the default location ?

/* Server Support Specialist */

Wednesday, January 20, 2016 1:22 AM

Hi,

It's best to leave them where they are in AD however you can move the mailboxes to a different database if you want.

Thanks.

Please mark as an answer if this answers your question

Mark Gossa

MCSE 2003, MCITP Enterprise Administrator 2008 R2, MCSA 2012 R2, MCTS Exchange 2010, MCTS SQL 2012, MCTS SharePoint 2007, VCP4, VCP5, CCNA

Blog: http://markgossa.blogspot.com   LinkedIn:    Twitter:   

Posts are provided “AS IS” without warranty of any kind, either expressed or implied.