Comment 58 for bug 207723

I have heard of instances of proxy servers front ending the actual exchange servers. Some of the proxy servers:

1) Are not SSL compatible with the SSL/crypto library that evolution calls - USE HTTP instead

2) The URL: http://email.foo.com may in fact point to the front end and/or proxy and you may need to determine the actual server your mailbox is located on via some MS Exchange magic. Once you have determined this physical exchange server's address you would not use the http://email.foo.com url but rather change it to http://server-1A.foo.com (for example!)

HTH,

Mike