I have set up a form for people to send an email to someone else from the website. They put in a from and a to email address. It will take any "to" email but if the "from" email address does not exist it returns the error "Recieved error code 501 from SMTP: 501 ... Sender domain must exist " I have used <dtml-try> but it does not work. Anyone have another way to handle this error? Thanks, J