Windows Phone 7 No GAL Access on Exchange 2003
http://blog.mpecsinc.ca/2010/11/windows-phone-7-no-gal-access-on.html
Getting a cert on a Win7 phone can be done
http://msmvps.com/blogs/bradley/archive/2010/11/09/getting-a-cert-on-a-win7-phone-can-be-done.aspx
Win7 phone and self-signed certshttp://msmvps.com/blogs/bradley/archive/2010/11/08/win7-phone-and-self-signed-certs.aspx
[WP7] Using an Exchange Account With a Custom Certificate:
http://www.jaylee.org/post/2010/07/31/WP7-Using-Exchange-Account-With-a-Custom-Certificate.aspx
Connecting Windows Phone 7 to Small Business Server : Virtual Realm:
http://www.virtualrealm.com.au/blogs/connecting-windows-phone-7-to-small-business-server/
Exchange ActiveSync Considerations When Using Windows Phone 7 Clients
Mobile Email With Windows Phone
http://social.technet.microsoft.com/wiki/contents/articles/mobile-email-with-windows-phone.aspx