What is Domain Aliasing?

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Domain Aliasing in essence, acts as a mirror for the email server between the extra domain name and the primary domain name. This automatically creates one extra email address for each email address that already exists for the primary domain name so that email messages are routed to the same inbox.

For example, if there is an existing email address for the primary domain name called admin@EXAMPLE1.com and Domain Alias is turned on for EXAMPLE2.com, from that point on any email that is sent to admin@EXAMPLE2.com will be routed to the inbox for admin@EXAMPLE1.com because they share the same inbox.

If a message is sent to both admin@EXAMPLE1.com and admin@EXAMPLE2.com, then two message will be delivered to the same inbox.

This also works with email aliases. Any mail sent to a domain alias would go to the email alias as well.

Like in the above example, EXAMPLE2.com is setup as a domain alias for EXAMPLE1.com. If you setup alias@EXAMPLE1.com as an email alias pointing to inbox@OUTSIDE.com (with OUTSIDE.com being an address outside of our network, like Hotmail, Yahoo, Gmail, etc.), any mail sent to alias@EXAMPLE2.com would also go to inbox@OUTSIDE.com.

The nice thing about Domain Aliasing is that you can set up an email address in an email program like Outlook to use either the primary domain name or the extra domain name. You can also login to the SmarterMail Web Interface by using either the primary domain name or the extra domain name. An example of this login page uses the following format:

http://mail.EXAMPLE1.com
http://mail.EXAMPLE2.com

To enable Domain Aliasing for an extra domain, see Article # 3.
To setup Email Aliases, see Article #575.

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