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Routing back the internal mails from exchange to internet hosted domain RRS feed

  • Question

  • Hi

     

    Our company exchange server is not accessible publicly on the internet. 
    The exchange is on a domain server named "xyz.local"
    It pops the messages from the hosting company which hosts our web and mail: "xyz.com".
    It relays messages through a smarthost that send the messages with our ISP.
    Users have in Active Directory a SMTP address of userX@xyz.com
    When user1 sends a message to user2 - it gets there immediately, without leaving the domain.
    All other messages use the smarthost and get delivered properly.

    My requirement is internal users need to see the internal mails also when they are outside the office through the webmail  for example : http://mail.xyz.com

     

    How to meet that requirement?

     

    Thanks & Regards

     

    S.Swaminathan



    Monday, December 19, 2011 10:31 PM

Answers

  • 1. Configure the OWA external URL to your liking (https://mail.xyz.com/owa)
    2. Make the address accessable through firewall/reverse proxy. (TCP/443)
    2.5 (Don't forget about external DNS resolution)
    3. Preferably buy 3rd party SSL certificate and tie that to your external facing CAS (or reverse proxy).
    4. Login ;-)

    More or less like that. What version of Exchange and do you plan to use a reverse proxy (like TMG) or just shoot a hole in the Firewall?


    Jesper Bernle | Microsoft Community Contributor 2011 Awardee
    • Proposed as answer by Sophia Xu Thursday, December 22, 2011 2:51 AM
    • Marked as answer by Sophia Xu Monday, December 26, 2011 8:05 AM
    Monday, December 19, 2011 10:45 PM

All replies

  • 1. Configure the OWA external URL to your liking (https://mail.xyz.com/owa)
    2. Make the address accessable through firewall/reverse proxy. (TCP/443)
    2.5 (Don't forget about external DNS resolution)
    3. Preferably buy 3rd party SSL certificate and tie that to your external facing CAS (or reverse proxy).
    4. Login ;-)

    More or less like that. What version of Exchange and do you plan to use a reverse proxy (like TMG) or just shoot a hole in the Firewall?


    Jesper Bernle | Microsoft Community Contributor 2011 Awardee
    • Proposed as answer by Sophia Xu Thursday, December 22, 2011 2:51 AM
    • Marked as answer by Sophia Xu Monday, December 26, 2011 8:05 AM
    Monday, December 19, 2011 10:45 PM
  • Hi,

    Agree with Jesper. And do you have any upadte?

    Thanks


    Sophia Xu

    TechNet Community Support

    Thursday, December 22, 2011 2:51 AM