Submit by email To: will not populate with email address

I have a form created in LiveCycle 8. I've created a submit by email button and put my email address in the "mailto:". When I click the submit button, my email client, Lotus Domino Web Access, opens and the subject line is completed and the PDF form is attached to the email, but the To: will not populate with the email address I put in.
 
Do you think this is a Lotus issue or maybe the company's firewall set-up?
 
I've also tried to do this using Acrobat Pro 9 and have the same issue.
 
Thank you/jasaussie