Exchange Gone AD Mailbox options gone for Office 365

Darrell Bradley
Darrell Bradley used Ask the Experts™
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Hybrid migration from Exchange 2013 to Office 365 Exchange online years ago. In the meantime Exchange 2013 was removed from local AD, server removed and decommissioned. Now some administrative tasks cannot be performed  in Exchange online  (hide from GAL and others). Can these functions be recovered to local AD? Exchange hide from address list
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Commented:
Not sure what you mean by recovered, but in any configuration involving DirSync/AAD Connect, you must make the changes in your on-premises environment. If you dont have an Exchange server anymore, use the AD tools and manually edit the corresponding attributes. In this case, the msexchhidefromaddresslists attribute.
Saif ShaikhServer engineer

Commented:
It is always recommended to keep at least one exchange server in onpremise to manage AD attributes for exchange mailboxes in online.

https://www.msb365.blog/?p=2595
https://mymicrosoftexchange.wordpress.com/2015/03/12/office-365-and-dirsync-why-should-you-have-at-least-one-exchange-server-on-premises/

You can get or install a new exchange server if the ORG name (Microsoft Exchange) is still intact in local AD.

OR as Vasil said  use the AD tools and manually edit the corresponding attributes. In this case, the msexchhidefromaddresslists attribute.
Darrell BradleyIT Manager

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Commented:
That will work, thanks.

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