Question : How to create another email address in one Exchange 2003 server

I have an exchange 2003 server.  I currently have email setup example  abc.com  now I want to setup another setup example 123.com.  It will be 2 different email setups with different users.  How can I confgure to have 2 email setups in one server.

Answer : How to create another email address in one Exchange 2003 server

Here is how to add it:
Add a recipient policy for the expected domain. To do so:

1. In Exchange System Manager, expand the Recipients object, then expand
the Recipient Policies object.

2. In the right-hand pane, right-click the Default Policy , and then
click Properties . Click the E-Mail Addresses tab.

3. Click Add to add a new SMTP address.

4. In the SMTP Address Properties dialog box, in the Address field, enter

@expecteddomain .com

where @ expecteddomain .com is the domain that then sender is attempting
to send to. Click Apply , and then click OK .

5. In the Default Policy Properties dialog box, click the E-Mail Address
tab, and then click to select the check box next to the SMTP address that
you just created.

6. Click Apply . Click OK when you receive the following notification:

The e-mail Addresses of type(s) [smtp] have been modified. Do you want to
update all corresponding recipient e-mail addresses to match these new
address(es)?

NOTES : If you would like to make the new SMTP address the default reply-
to address for all users in your Exchange 2000 organization, click the
new address, click Set as Primary, click Apply , and then click OK .

If you want to update these addresses immediately, force the Recipient
Update Service to update your Exchange server and organization

ALso make sure your ISP's MX record is pointed to your email server for that domain.

You can test it by doing the following:

From the exchange server:
Click Start
Run
telnet 127.0.0.1 25
mail from: [email protected]
rcpt to: [email protected] (your new email address)
data
This is a test message
.
then it should say sucess.

You might need to add the email to your account in active directory by clicking email address on your users in Active Directory users and comptuers.

Good Luck