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Check out these links.<br />
<br />
Two step process, first you need to define the additional domain names as accepted/authoritative:<br />
<a href="http://technet.microsoft.com/en-us/library/aa996910(EXCHG.80).aspx" rel="ugc">http://technet.microsoft.com/en-us/library/aa996910(EXCHG.80).aspx</a><br />
<br />
Then you need to modify your e-mail address policy to include those domains:<br />
<a href="http://technet.microsoft.com/en-us/library/bb201663(EXCHG.80).aspx" rel="ugc">http://technet.microsoft.com/en-us/library/bb201663(EXCHG.80).aspx</a><br />

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Check out these links.

Two step process, first you need to define the additional domain names as accepted/authoritative:
http://technet.microsoft.com/en-us/library/aa996910(EXCHG.80).aspx [http://technet.microsoft.com/en-us/library/aa996910(EXCHG.80).aspx]

Then you need to modify your e-mail address policy to include those domains:
http://technet.microsoft.com/en-us/library/bb201663(EXCHG.80).aspx [http://technet.microsoft.com/en-us/library/bb201663(EXCHG.80).aspx]


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Yes you can add a new UPN suffix to user accounts
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Yes you can add a new UPN suffix to user accounts

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Hi, is it possible in Exchange 2003, to have a &quot;domain alias&quot; for users.<br />
<br />
When adding user1 to domain he gets user1@verylongdomain.com, but I would like that he is &quot;linked&quot; to user1@short.com with user1@verylongdomain.com as default sender adress.<br />
<br />
Is this possible, and what do I do with existing users then?
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Hi, is it possible in Exchange 2003, to have a "domain alias" for users.

When adding user1 to domain he gets user1@verylongdomain.com, but I would like that he is "linked" to user1@short.com with user1@verylongdomain.com as default sender adress.

Is this possible, and what do I do with existing users then?

Domain alias exchange

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.