I wonder if it doesn't like sending from an @aol.com email address.
Try using an email address registered for your domain as the from address so that it uses something like: admin@hinghamshipyardmarinas.com
Who is your hosting provider? Is it possible that the email is sending but getting spam blocked by your receiving email system?
Can I get FTP information to debug? I'll try a few things to see if I can figure it out.