So according to a client they have done e-mails in the past ("sorry I do not have an example") where they have a "Reply" button that opens up an new e-mail with the e-mail field prefilled with the address whatever the OFT was sent from. I ask him if they maybe used mailto:my@email.com and he says no. I just want to confirm that my client is not using any technology I never heard of and is probably confused with what is possible within an OFT.