All SMTP email messages contain a number of mail headers, which give Internet mail servers the information necessary to route the message to its destination. Mail headers also provide information used by the email client program to show the message to the user, such as the message date and the sender’s email address.
ColdFusion allows you to add your own mail headers to mail messages, using the <cfmailparam> tag.
You can see what these mail headers look like by using an ordinary email client program. For instance, in Outlook Express, highlight a message in your Inbox, select Properties from the File menu, and then click the Details tab.
ColdFusion provides a tag called <cfmailparam> ...