I put my form on a page on Amazon S3 and got it to appear and work using an iframe, however when I enter my email address, I get the following message:
"Although this page is encrypted, the information you have entered is to be sent over an unencrypted connection and could easily be read by a third party.
Are you sure you want to continue sending this information?"
Everything still works OK, but I'm concerned that this message could put people off submitting their information. Is there a way to stop it from appearing?