Comapany name change/e-mails address change in MS exchange server 2003

Posted on 2007-07-25
Last Modified: 2013-11-30
Hello Folks,
We are running a windows 2003 domain.
we have a domain name and host our e-mails on an exchange server 2003. But our company is changing it's name to something else whic will mean a change in domain name and consequently e-mail address. We could not possibly inform all our customers of the new e-mail address and even if we could, some customers will still send messages to the old e-mail addresses. How do I manage this switch over? Do I have two exchange servers running sisde by side and gradually withdrawing the old domain? Do I create another domain and set up forwarding? How do I make sure all our future e-mails after the name change only carry the new domain name though the messgas could have been recieved using the old name.
I know there must be a way but I just can't figure out how to do it.
Thank you
Question by:Ogdhelpdesk
    LVL 35

    Accepted Solution

    to begin with, the MX record of the new domain should point to your exchange server
    once that has been done, you need to configure a recipient policy with the new smtp domain name or modify the exisiting policy and set the new domain smtp address as primary
    once this has been done, users will have two email addresses. one for the new domain and one for the old domain
    users will be able to receive emails send to both domain addresses but when they send out an email it will show the email address of the new domain
    LVL 18

    Assisted Solution

    LVL 8

    Expert Comment

    you have to configure secondary email addres with old mail aliases.

    you have to modify RUS policy in exchange
    LVL 8

    Expert Comment

    sory I didn't see the updated content when answering


    Author Comment

    Hi folks,
    I know question one has already been answered, however do you have an idea what i should do to resolve Q2 and Q3. Or should I post a separate question for this.
    1. I would like my users to be able to continue to receive e-mails addressed to them at, however I want them to be able to send/receive e-mails as i.e the new domain name. How do I configure this changeover  in exchange 2003.?
    2. What should I do about the OWA, if users point their browsers at the old domain (exchange OWA address) will it automatically pick up both old and new e-mail addresses.?
    3.My users currently logon to ABC as their domain. Do I need to change this to XYZ and how?

    Thank you very much  

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