SMTP is useful for sending emails. I have a problem in authentication. How can we Free SMTP servers without authentication? For which emails authentication is not necessary?
SMTP authentication is not compulsory for sending the emails. Their generation is automatic through workstations, printer, fax, servers, and scanner machines. UNC’s email system helps in delivering them. There is no need to register your device to relay.unc.edu whitelist. We use the net ranges for sending emails. It will scan your email if any spam or virus is there. There should be a separation between User and machine mail streams.
