I just finished to setup a new windows based webserver.
Installation: Windows 2008 X64, IIS7, MailEnable Pro 5.06, Plesk Control Panel 10.2, MSSQL 2008, MySQL 5.xx, PHP 5.2x.
The problem: The contact forms of other PHP based forms are not sending the email.
The email works normaly and I can send and receive e-mail on three diferent domains I am allready hosting. The PHP forms are working just fine on a different server so that is nothing wrong with them.
I don't know if PHP is the problem of just the mailserver setup. I am new with mailenable but i can't see what can be wrong in there because normal SMTP traffic works just fine.