If you are having problems getting mail sent via the CFMAIL tag because, as it should be, relaying is turned off on the Mail Server you are specifying in your CFMAIL tag. You will see sort of error in the ColdFusion Mail log. “Failed to send the spooled mail file, C:\\CFusion\\Mail\\spool\\1DF.cfmail. SMTP server replied “User not local. Authentication required for relay” Moved file to D:\\CFusion\\Mail\\undelivr\\1E0.cfmail.” One way around this problem is to specify the IP Address of the ColdFusion server in the “Trusted IP’’s” area of your Mail Server relay settings.