I'm currently working to integrate word press into our windows AD domain. Right now any active AD user can connect to our word press site and view it. However users still need to register to post comments. When a user clicks on the wp-register.php page I'd like to appended an "@CORP.FOO.COM" to their username when it is submitted.
That is to say I want the user to just need to type "matt" but upon submission the name goes into the WordPress database as "matt@CORP.FOO.COM". This will fix the kerberose error I see after registering because users forget to add their domain information to their registration.
Can someone give me a suggestion?