Need to send out under different e-mail address from Exchange 2003

Here is my issue I have exchange server 2003 and server 2003 with 4 different domain names setup  
IE: me@compayA.com
    me@compayB.com
  me@compayC.com
me@compayD.com
they all get e-mails no issues but my issue sending out I need to send out as different companies do not know how I can set this up is there any way of doing this
biztexAsked:
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AustinComputerLabsCommented:
In Outlook you can create new accounts for each extra address you would like to send from. Put a bogus name for the incomming mail server and uncheck the account from the default send recieve group. Then when you open a new message you can choose the from button and select the account you want it to be from.

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iamozymandiasCommented:
Different than....??
me@compayA.com
me@compayB.com
me@compayC.com
me@compayD.com
Guy Hengel [angelIII / a3]Billing EngineerCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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