Not able to use activesync with an iphone

[undertakers]

I just install Nginx on a Debian server into a DMZ to publish Exchange
(2K3 Std) services on the internet. It works with Android systems but it
doesn't work with iphone. I get the error message : "impossible to check
the account data" on the iphone when i try to set up the Exchange
account.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,192090,213482#msg-213482