LDAPAutoDiscover

Outlook-compatible autodiscover.xml generator for AD domain-connected users.

Requirements

• PHP5, including PHP5-LDAP
• Active Directory environment
• An AD user to bind with for searching
• A web server (Works well with IIS)
• A HTTPS site for greatest compatibility with client discovery
• Ability to add a publicly-resolvable subdomain (autodiscover.fqdn) and set appropriate firewall forwarding rules

Setup

Assumes IIS.

• Create your website and assign appropriate bindings (autodiscover.fqdn)
  • For best results, create bindings on ports 80 and 443 using a valid SSL certificate
• Place autodiscover.php under the autodiscover folder. The full path should resemble http://autodiscover.domain.com/autodiscover/autodiscover.php
• Create a URL rewrite with the following settings:
  • Name: XML to PHP
  • Requested URL: Matches the pattern
  • Using: Exact match
  • Pattern: autodiscover/autodiscover.xml
  • Action type: Rewrite
  • Rewrite URL: autodiscover/autodiscover.php
• Edit the $config array within autodiscover.php to reflect your environment/requirements, specifically:
  • Email servers (Gmail is supplied)
  • AD hostname and root DN
  • AD bind user and password
• Profit!

What's the AD integration for?

Using a static XML file with Google Apps doesn't quite do enough - it works, but when Outlook asks for your password it assumes your Google Apps username is part of your email address (eg bob) instead of the full email address (bob@fqdn).

By using AD we're able to generate on-the-fly a custom XML file for each autodiscover request, which includes the username of the account and the full name of the user.