Configuring Exchange 2007 for external access to the Autodiscover service

You would like to think that going out and buying that expensive UCC Certificate then installing it properly into Exchange (as described in my previous post) would be enough, wouldn't you? Far from it. There are several follow-up steps required to properly configure Exchange 2007 (especially its Autodiscover service). Microsoft outlines a few of the commands here:

To configure the Outlook Anywhere service, run this in the EMS:

Enable-OutlookAnywhere -Server CAS01 -ExternalHostname "mail.contoso.com" -ExternalAuthenticationMethod "Basic" -SSLOffloading:$False

To configure the Offline Address Book service, run this in the EMS:

Set-OABVirtualDirectory -identity "CAS01\OAB (Default Web Site)" -externalurl https://mail.contoso.com/OAB -RequireSSL:$true

To configure the Exchange web services, run this in the EMS:

Set-WebServicesVirtualDirectory -identity "CAS01\EWS (Default Web Site)" -externalurl https://mail.contoso.com/EWS/Exchange.asmx -BasicAuthentication:$True

If using Unified Messaging, run this in the EMS:

Set-UMVirtualDirectory -identity "CAS01\UnifiedMessaging (Default Web Site)" -externalurl https://mail.contoso.com/UnifiedMessaging/Service.asmx -BasicAuthentication:$True

Of course, don't forget to change the contoso stuff to your own domain. Many of these can be configured in the EMC if you are scared of command line, except for EWS... that one can only be found in the EMS. Finally, add an A record for Autodiscover and point it to the external IP of your exchange server (the same IP that mail.domain.com is pointing to) and Autodiscover should be set.