How to configure IIS SMTP to forward ALL inbound email to ANOTHER domain

Posted on 2008-11-19
Last Modified: 2012-06-27

How does one configure IIS6 (Windows 2003 server) to forward ALL email to another domain?

I have a web application which runs on a web server.  This sends emails using CDO using the (fictitious) domain  For anti-spam filter reasons the MX record for points at this server.

I need to be able to forward all emails received to on to  E.g. sending an email to gets forwarded to which is hosted on a different ISP/Server.

I do not have Exchange;  it's a bog-standard IIS6 box running on the web server edition of W2k5.

Is this possible with IIS' SMTP server?  If not, recommendations please.


Question by:GlennGilbert
    LVL 37

    Accepted Solution


    what you are describing is recipient address rewriting.

    you can't do that with IIS smtp server.

    there are plenty of alternatives - fee: mdaemon, mailenable, and many more.  free: postfix, sendmail, and many more.

    LVL 3

    Author Closing Comment

    Many thanks.  

    As ever the problem is finding the right description for what we want to do.

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