Share via

Complete cleanup after exchange removal

  • Article

Question

Tuesday, January 28, 2020 10:50 PM

Hi,

after removing Exchange, we must delete all records left in the domain.

This environment is very old and I believe that the Exchange that existed was at the time of Windows 2003.

Does anyone know what records these are?

Or should you simply remove everything that contains the old server name, where it exists?

Thanks.

All replies (5)

Wednesday, January 29, 2020 4:39 AM

Hi

You can remove old records if Exchange has been removed completely. If an older version still exits you can check ADSIEdit to clean it up.

Hope this helps. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Wednesday, January 29, 2020 6:42 AM

Yes remove A CNAME and and any PTR records relevant to old exchange also check if any CNAME record exists for OWA and Activesync etc

Vinny | Freelancer | Azure Solutions Architect Expert| Office 365 Enterprise Administrator| Microsoft 365 Certified: Messaging Administrator Associate| ITILV3 | PMP

Wednesday, January 29, 2020 9:56 AM

Below information may be useful,

/en-us/exchange/decommission-on-premises-exchange

https://practical365.com/exchange-server/how-to-decommission-an-exchange-server-after-office-365-migration/

https://practical365.com/exchange-server/removing-premises-exchange-servers-migrating-office-365/

https://www.datarepairtools.com/blog/decommission-exchange-server-post-office-365-migration/

Thursday, January 30, 2020 9:03 AM

Hi Sandrix Helps,

You can use ADSI Edit to do that:

1.Go to:CN=Configuration,DC=DOMAIN,DC=LOCAL,CN=Services

DELETE: CN=Microsoft Exchange;CN=Microsoft Exchange Autodiscover

2.Go to:CN=Default naming context,DC=DOMAIN,DC=LOCAL

DELETE:CN=Microsoft Exchange Security Groups;CN=Microsoft Exchange Security Objects

You can refer to this link for some further information:https://blog.dargel.at/2012/11/20/complete-remove-exchange-2013-using-adsiedit/

Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

Regards,

Eric Yin

Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact [email protected].

Tuesday, February 4, 2020 9:41 AM

Hi,

I am writing here to confirm with you how the thing going now?

If you need further help, please provide more detailed information, so that we can give more appropriate suggestions.

Regards,

Beverly Gao

Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact [email protected].