Allow a user to send and receive mail from specific email address in exchange 2010

If you right click a mailbox in the Exchange management console you can manage the Full Access permissions. This allows a user to mount that mailbox in their Outlook in addition to the mailbox associated with their account.

If you right click that same mailbox and go to properties, you can manage Send On Behalf permissions in the delivery options.

What do you mean by Specific Email address ? Is that a Accepted Domain in your Exchange environment ?

As every user has a Email to be able to send and receive and thats what they do ? if utmost they can work with Shared mailbox or PF :P

- Rancy

techlabtest, based on the variety of responses already it appears that we may not be fully understanding your question. Can you please elaborate for us? A case example could also be helpful. Thank you.

Thanks for your comments.  Suppose the user email address is user1@techlabtest.com.  I want this user to be able to send and receive mail from only userexternal@intnet.mu.

Can we do that?

Thanks