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michhim's avatar
michhim
Copper Contributor
Jul 27, 2022

What to do with DiscoveryMailbox and Health Mailboxes after migration to office365?

Hi  after migration user mailboxes to o365 to shut down an exchange, i see the discoverySearch- and Healthmailboxes still on the exchange server. Can i just leave them there or disable / delete them...
2016
Exchange Server
hybrid
Dan_Snape's avatar
Dan_Snape
Bronze Contributor
Jul 28, 2022
That is a good question. My understanding is that Microsoft are referring to users/resource/shared mailboxes not system/health mailboxes when saying there should be no mailboxes left on premises, but what you are actually supposed to do with the system and health mailboxes once you shutdown the last server I'm not sure
  • michhim's avatar
    michhim
    Copper Contributor
    Jul 29, 2022
    Hi Dan

    I cleared all the mailboxes from the command Get-Mailbox with disable-mailbox command. The healthmailboxes from monitoring i deleted through ADUC. Didn't notice anything special from removing them.
    • Dan_Snape's avatar
      Dan_Snape
      Bronze Contributor
      Aug 02, 2022
      I was looking at the disable-mailbox cmdlet and it does have a parameter called "DisableLastArbitrationMailboxAllowed" which might also be appropriate.

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