Exchange 2003, Router set for UDP or TCP?

Posted on 2005-05-02
Last Modified: 2006-11-18
Hi all,
Simple question, setting up exchange 2003 on a new router.

Which port do I open up on the router, and do I select TCP or UDP?

I have a hunch its port 25.

Question by:JasonWinn
    LVL 15

    Accepted Solution

    Hi JasonWinn,
    You're right with your hunch :-)

    SMTP uses TCP port 25

    Does that help?
    LVL 3

    Author Comment

    Thank you very much scampgb :)
    LVL 15

    Expert Comment

    Glad I could help.  Good luck with it! :-)
    LVL 24

    Expert Comment

    Don't forget 80 and 443, if it is a Front-End box.

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