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Exchange 2010 Server webmail

Posted on 2011-02-28
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I have an exchange server running at home (home office 3 employees) i have 1 dynamic IP so i use dyndns. i have their custom DNS service so i can make A records etc...

My ISP blocks port 25 to prevent spam.

i want to change the port to 26 or 2525 whatever just not 25....

ALSO i NEED to change the webmail access port from 80 to 8080 or 8888 because port 80 points to my SSL VPN appliance. I am new with exchange and certainly new with exchange 2010

thanks
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Question by:mxrider_420
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by:Glen Knight
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Webmail uses port 443 not 80 and you cannot change it, it's integrated in to exchange that any changes will cause problems.

You need to change the VPN port instead.

For port 25 you will need to use a mail redirect service like: http://www.dnsexit.com/Direct.sv?cmd=mailRedirect then on the receive connector change the port number from 25 to 26 and restart the Microsoft Exchange Transport service
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Alan Hardisty earned 500 total points
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by:MichaelVH
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For OWA, you can use port forwarding and make changes to the external port.

Your mapping would look like this

External     Internal
8080          80
4430          443

That should work.
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by:Glen Knight
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OWA doesn't use port 80, it only uses port 443
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by:MichaelVH
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demazter,

indeed it doesn't, but it's always nice to redirect port 80 to 443 as well, since 90% of all users almost always forget to type the s in https ;-)

Grts,

Michael
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by:mxrider_420
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ok my SSL VPN appliance uses 443 i redirect port 80 to 443. how can i forward both tho? say if i want them (OWA and VPN appliance) to be separate because i only have 1 public facing IP...
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by:mxrider_420
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i use Postini for filtering if i use a mail hop service can i still create my own smtp records then too?
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by:mxrider_420
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Because i have 1 public IP and a device that already forwards port 80 to 443 for my SSL VPM appliance here is what i need:

i need to change IIS to understand that it needs to host its https connection on a port other than 443.  this way i can tell my firewall that port 8080 goes to 4443 for example other wise i will keep getting directed to my already setup on 443 device.

but how

thanks
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by:Glen Knight
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As I said, changing the OWA port is not recommended, it's so closely tied in to Exchange and IIS that it will never work properly.

I would suggest changing the VPN so it uses say port 444, you can then forward port 443 to Exchange and be done with it.
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by:Alan Hardisty
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If you change the default ports for IIS (Default Website), you will break Activesync if you are using it.
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by:mxrider_420
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ok great.  good advice ill do that.

secondly how can i use postini web filter and archiving when i need it to use port 26 or any other than 25 because my ISP blocks 25 from anything that isnt their server as a smart host? currently i have no way of making my outboud mail go through my postini service.  and with a mailhop service id be making a loop.
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by:mxrider_420
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Author:alanhardisty If you change the default ports for IIS (Default Website), you will break Activesync if you are using it.

I cant change the https port on the Sonicwall device it doesnt allow for that. I am going to just have to use vpn to access the outlook as there is seemingly no way to simply make this work with two devices fighting for the same port useage and only 1 public IP.

thanks everyone.
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