High Performance SMTP Authentication in Mail Shield Gateway Antivirus Product

With the rapid development and wide application of the Internet , the network virus has the Internet as a major route of transmission . By e-mail transmission is the most direct way . The transparency of the user and the mail server to mail virus killing , while reducing the risk of the mail server , and improve the efficiency of virus killing . The way we use the mail gateway (MSG Mail Shield Gateway) killing of e-mail viruses and worms . When the original mail server requires client authentication , MSG is necessary to ensure the certified communication between the original mail server and mail client will not be affected . This paper discusses how to achieve SMTP mail antivirus gateway product certification . First introduction of SMTP authentication ---- related protocols , standards , and leads the research core ---- AUTH RELAY . Followed by an extended discussion : SMTP authentication product in the multi-domain authentication and related certification information format changes . The paper also shows the test results achieved by the subject . Finally, the visions and perspectives of further products SMTP authentication .