SmartMail Server 1.0 Beta 10 - Denial of Service via Long SMTP or POP3 Request
Buffer overflow in SmartMail Server 1.0 Beta 10 allows remote attackers to cause a denial of service (crash) via a long request to (1) TCP port 25 (SMTP) or (2) TCP port 110 (POP3).
SmartMail Server 2.0 - Denial of Service via Early Connection Termination
SmartMail Server 2.0 allows remote attackers to cause a denial of service (crash) by sending data and closing the connection before all the data has been sent.