I've got FS Contact Forms installed and use Dreamhost as my hosting service. Whenever someone completes one of my forms, the data is moved to Contact Form DB plug-in correctly, but if the person entering information is using a gmail or yahoo account, I do not get their data. They get an automatic reply from the website, but I do not get the form data. However, if the user uses a "corporate" account, everything works fine (both data loading into the Contact Form DB and email to me).
I am using a domain email and have disabled all plug-ins except FS Contact Forms and the situation remains the same.