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Exchange 2010 - Email Address in use?

Hi there,

I have set up and installed my own server using VMWare with Server 2008 and Server 2011 SBS, using Exchange 2010.

It's all running very smoothly considernig it's my first go at this kind of thing.
I have set up a number of email addresses in my Exchange as well as Distribution Groups.

I have a requirement for a Distribution Group "" - but when I try to add this it fails, telling me that the email address already exists.

The trouble is I can't find it anywhere. It's not in my Recipient List, and not in my Distribution Groups list....

Can anyone give me some ideas of where this might be hiding? I will update with any information required.

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Try this in Exchange Management Shell:

get-recipient | where {$_.emailaddresses -match “”} | select name,emailaddresses
You can also search in Active Directory Users and Computers

Right Click on Domain and select "Find"
In the Find field change the criteria to "Custom Search"
Click the Advanced Tab where you can type in an LDAP query
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Thanks mpbeavjr - No luck though.

Here is the error I get when adding a Distribution Group via the wizard from Exchange Management Console:

Summary: 1 item(s). 0 succeeded, 1 failed.
Elapsed time: 00:00:07


Active Directory operation failed on SIGMA.deltamtisa.local. The object 'CN=service,OU=SBSUsers,OU=Users,OU=MyBusiness,DC=deltamtisa,DC=local' already exists.

The object exists.
Click here for help...

Exchange Management Shell command attempted:
new-DistributionGroup -Name 'service' -SamAccountName 'service' -Alias 'service'

Elapsed Time: 00:00:07

(The link brings up that the article doesn't exist)
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Thank you.<br /><br />I am surprised that they took "service" though, I would imagine there would be a lot of people who would use that name if they could.
My pleasure

Yeah, it is frustrating when they do that.  You could just change one of the letters to a number like:

I would if it was a personal email address, but it's for a business so I think I'll just make it "service1" - swapping numbers for letters looks less professional.

Thanks again :)