Stack-based buffer overflow in the SMTP Daemon in Ipswitch Collaboration 2006 Suite Premium and Standard Editions, IMail, IMail Plus, and IMail Secure allows remote attackers to execute arbitrary code via a long string located after an '@' character and before a ':' character.
https://exchange.xforce.ibmcloud.com/vulnerabilities/28789
http://www.zerodayinitiative.com/advisories/ZDI-06-028.html
http://www.vupen.com/english/advisories/2006/3496
http://www.securityfocus.com/bid/19885
http://www.securityfocus.com/archive/1/445521/100/0/threaded
http://www.ipswitch.com/support/imail/releases/im20061.asp
http://www.ipswitch.com/support/ics/updates/ics20061.asp
http://securitytracker.com/id?1016804