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OWA Does not Work With Current ISP

Posted on 2006-07-08
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Last Modified: 2008-03-04
I have setup Exchange Server 2003 on a box in my office.  My current ISP is blocking inbound port 80 so OWA is  not working.  I figured out a work around for mail delivery using dyndns.org but OWA is not working. Is there a work around for OWA when inbound port 80 is blocked?  If so, how do I secure OWA using SSL under the same circumstanes?

Any help would be appricated.

Thanks

Ray
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Question by:mcgowray
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Expert Comment

by:ECNSSMT
ID: 17065897
port 80 is http; which means that everything else should be blocked.

1. see if you can ping your OWA server.

2. I am curious what you see on IE (or your browser) when you attempt to go to your owa site.  

Regards,
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Author Comment

by:mcgowray
ID: 17067460
I can telnet to the exchange server from both inside and outside the network.  When I attempt to IE to the exchange server from the outside I get a page cannot be displayed.  If I connect to the Exchange OWA from inside the network I can get to it with no problem.  I am pretty sure that I have to use a different port but I am not sure how to setup Exchange Server to use the new port for OWA.  I am also not sure how to setup OWA to use SSL for security since this is a home office system I am consired about security and protecting my system.

Thanks,

Ray
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Accepted Solution

by:
LeeDerbyshire earned 750 total points
ID: 17076871
Here are two different approaches to Exchange/SSL ; one uses a 3rd-party cert, the other a self-created one:

http://www.msexchange.org/tutorials/SSL-Enabling-OWA-2003-Using-Free-3rdParty-Certificate.html

http://www.msexchange.org/tutorials/Creating-Certificate-OWA2003-SelfSSL.html

If you use SSL, then you will need port 443 open, not port 80.  Hopefully, your ISP will not have closed that.  If they have, you will need to change the port used for SSL in the properties of your Default Web Site in IIS Manager.  You would then also need to indicate the non-standard port number in your OWA URLs: https://servername:portnumber/Exchange .
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