OWA Redirect when using WAP

ISA is dead. TMG and UAG are soon dead and WAP are taking over, With the advantage of ADFS doing pre-authentication now also for services that doesn’t support claims based autenthication.

But, from ISA/TMG/UAG we create rules to redirect OWA URL like this:

webmail.contoso.com redirect to webmail.contoso.com/owa

But, this isn’t possible With WAP Servers, the path has to be the same.

So we need to make Exchange do this for us instead, and the following solution is possible for Exchange 2010.

Open IIS Manager on Your Client Access Servers, and navigate Down to the Default Web Site.

Configure the feature named HTTP Redirect like this:

httpredirect

Aslo if you want HTTP to be redirected, you need change the SSL Settings for the Default Web Site like this:

sslsettings

Source.

This will make HTTP redirected for internal network Connected Devices, but we need to tweak more for WAP to redirect HTTP to HTTPS from external Networks.

It should be achieveable With an app for IIS named URL Rewrite, but I haven’t succeded yet.

Source.

Ehlo!

I am Roy Apalnes, a Microsoft Cloud Evangelist working av Sopra Steria. Main focus in Microsoft Security and Endpoint Management, with a bigger picture in mind.

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