How do I add additional email addresses to user in Exchange 2010

I just added a new email address to a particular users email account in Exchange 2010.
When I email this user I get a failure notification both internally as well as testing externally, what am I doing incorrect here?
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uescompConnect With a Mentor Commented:
is the added to the baracudda?
You just open up the mailbox and tag an address in there.  If the domain is different you might have to add the domain as an accepted domain in exchange for it to accept email coming in.
Open Exchange Management Console.

Click on mailboxes within Recipient configuration

Double click the mailbox you want to add a email address to.

click on the tab "Email Addresses"

Click Add.


If you need to add a new domain to exchange you will need to get the mx records pointing to your server on a external dns server and then you go into exchange management console.

Click on Hub Transport in Organisation Configuration.

click on the tab accepted domains

right click and select new accepted domain.
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To get the email arrive to your user with a new email address you need first to ensure that your server can receive emails for this domain, in the domaian is the same as the default you should be able to add the second email address and the email should arrive to the mailbox. But if the domain is not accepted by your exchange server you need to add it to Exchange 2010.
Open EMC - Organization configuration - Hub Transport  - Accepted Domain - There you have to add the new domain if is different than default.
Therefore you need to configure MX records in authoritative DNS serverfor your your domain in internet, to allow emails to arrive from internet.
You can verify email configuration in page
There are many test you can try.
manelson05Author Commented:
I have the MX pointing at the barracuda right now, so I am good there.
Both domains are added there. The link on our webpage says so I naturally just added that email address to a user already associated with that domain. I can email no problem but when I send to I get failure notification.
Yes you need to add the info@ address to the barracuda unless it is synching itself with your domain.
manelson05Author Commented:
I forgot to update this, I also need more sleep.

Thank you
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