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Unable to create an Alias in Exchange 2007

I am running a single forest, single domain network with a single Exchange 2007 Server.

I have a new starter called Emma and have created her AD account of elc and when I added her mailbox in Exchange it allocated her the e-mail of elc2@xxx.co.uk instead of elc@xxx.co.uk. I tried to add an alias in Exchange and was presented with the attached message.
ex2k7-Error.png

Andy M

This indicates that you already have a mailbox/group called ELC that is using that email address. You can't use the same email address on a server twice so to add it to Emma's mail account you would firstly need to remove it from the ELC account.

VB ITS

If you aren't actively using that ELC mailbox then locate it in the Exchange Management Console > Recipient Configuration > Mailbox > right click on the ELC mailbox > Properties > E-Mail Addresses tab > untick the Automatically update e-mail addresses based on e-mail address policy box > change the elc@company.com email address to something else, e.g. elc1@company.com > click OK > try adding the elc@company.com alias to the other account again.

SOLUTION

PanosMitkas

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cmlbaete

ASKER

Thanks all for your posts.

I am aware that you can only have one instance of each alias which is why this has happened but I am struggling to find out what has ELC applied to it
I ran the command posted by Panosmitkas and I can see its been given to a public folder which helps but we have quite a few public folder so I am now trying to locate which public folder its linked to.

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