creating new distribution list

creating new distribution list
we have Exchange 2010 and windows 2008 Active Directory
our Exchange email mydomain.com, but we have other accepted domains, among them XYZdomain.com

we have an account in active directory with name of johny.
johny has an email address of johny@mydomain.com

we need to create a distribution list with the name of johny@xyzdomain.com, but it says the account already exists.

I thought since it is a distribution list , it would not matter if the AD account has already the same account. and Distribution list it is not an AD account.


any idea if that s the rule ?

thanks
jskfanAsked:
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dsnegi_25decConnect With a Mentor Commented:
you have to create diffrent diffrent alias for both & add additional SMTP address what you want
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jss1199Connect With a Mentor Commented:
check the johny account.  Most likely, he already has the email alias johny@xyzdomain.com ties to his AD account.
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jskfanAuthor Commented:
No johny has just johny@mydomain.com email
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jskfanAuthor Commented:
the exiting johny has a mailbox, but the new johny I want to create is just a Distribution List
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jss1199Commented:
but if the user johny@xyz.com exists as a mailbox or alias, you cannot create a distribution list with the same name. How would the messaging system know who to route to?  the DL or mailbox?
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jskfanAuthor Commented:
we have an account in active directory with name of johny.
johny has an email address of johny@mydomain.com, he has a mailbox

we need to create a distribution list with the name of johny@xyzdomain.com, but it says the account already exists.
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guswebbCommented:
Your recipient policy must have assigned a 2nd email alias to Johny for the xyzdomain. Check his attributes to see which email aliases he has.
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jskfanAuthor Commented:
the existing Johny does not have an email address for xyzdomain.com
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guswebbConnect With a Mentor Commented:
As a test, create the new DL with the name JOHNNY (two Ns). Then once created, assign it another email alias of johny@xyzdomain.com.
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jskfanAuthor Commented:
JOHNNY (two Ns)

That's different account...I know it will work that way...I was just checking the rules... to make sure that I cannot create a DL if an account with that name is already in AD
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guswebbCommented:
If it has the same display name as some other AD object then you would get the error you describe. Giving it a different display name will allow you to create the DL, then you can assign your preferred email alias to it.
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jskfanAuthor Commented:
Thanks
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