Exchange 2007 unjoin and rejoin domain.

JameMeck
JameMeck used Ask the Experts™
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I have unjoined the email server, and I joined again.
Now the exchange cannot run anymore, what should I do?
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Mohamed ElManakhlyInfrastructure Team Leader

Commented:
what exchange roles installed on that server ?
Mohamed ElManakhlyInfrastructure Team Leader

Commented:
from active directory users and computers .. open the AD group called "Exchange Domain Servers" .. probably your Exchange Server is not there now thats why services wont start ... add it again in that group
can you login? runas deferent user? what is the error you get ? event viewer ?
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Author

Commented:
M-Manakhly: I am using windows server 2003,  nothing is Exchange Domain Servers.

Sulimanw: I rejoined sucessfully, but now when I restart, the Exchange server show "Apllying Setting..."
Has been 1 hour.
What should I do now?

Ok, did you remove the computer object from AD users and computers console before rejoin it?
if so, restart in safe mode with networking after disjoin it again and delete the computer object then rejoin it and restart normally.

BTW,Do you have a local access ( local administrator) to the server ?

Author

Commented:
Sulimanw: Yes, I have removed and rejoined successfully.

I have tried a lot of time to disjoin and join again, but when disjoined, I can start as normal.
When I joined, it show applying setting.. and got stuck.

I have a question: For Exchange server 2007, when I disjoin and join again, is there any problem?

Author

Commented:
Yes,
I have read it, but I don't know how long it takes to re sync data with the DC, it has been more than 1 hour.

What should I do now, please help me!

Author

Commented:
I have restored my computer by NTbackup, now I cannot logon, because it says computer account is not found.
What should I do?

Mohamed ElManakhlyInfrastructure Team Leader

Commented:
"Exchange domain servers" group is created in active directory when you prepare active directory during exchange server installation, it is definitely there. it doesn't matter if you are windows 2003 or 2008

run a search on your active directory for the word "Exchange" , the results should return the "Exchange Domain Servers" group

Author

Commented:
Please help me how to make my Exchange become member of my DC, I cannot logon bebause it says computer account is not found.
Mohamed ElManakhlyInfrastructure Team Leader

Commented:
ok .. you need to take this one step at a time :

1- login with the local administrator account on that server
2- disjoin an rejoin to your domain
3- go to active directory and search for the group i told you about "Exchange domain servers"
4- add your Exchange computer account to this group
5- restart your exchange server.

Author

Commented:
Thank M-Manakhly.

I don't want to disjoin the Exchange because as I said above, I got stuck at "Applying computer setting".
I don't know how to rejoin my Exchange server from my DC.

Thanks!
Mohamed ElManakhlyInfrastructure Team Leader

Commented:
dude :)) .. there is no more harm could be done from doing a re-disjoin to the exchange.

do you have the password for the local administrator for that server ?

if so , remove the network cable or wait for the login screen , and login locally whatever way just login locally .. once there disjoing and rejoing..

did you find the group i told you about ?

Author

Commented:
Yeah,
I found account group and I have added the Exchange server to member of Exchange account.
As you said, if I remove the network cable, how can the Exchange service start?
If I plug the network cable, I get stuck with "Applying computer setting".

Infrastructure Team Leader
Commented:
okay removing the cable is just to help you login locally, once you are in follow the bove steps (after plugging the network cable ofcourse :))

disjoin , join , add the new computer account to the mentioned group , restart the exchange server

Author

Commented:
Thanks to M-Manakhly!
You are correct.

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