my co-lo server with ev1 is ccwny.computercare-wny.com

any domain I setup with frontpage extensions I am having a problem with email forms.

email forms work, and send the email to the user, however the email arrives with a FROM email address of domainuser@ccwny.computercare-wny.com

I have tried many times with many domains to change the info in /usr/local/frontpage/www.domain.com:80.cnf

I am having no luck at all....

is this an exim mail server problem?