Stack-based buffer overflow in Eureka Email 2.2q allows remote POP3 servers to execute arbitrary code via a long error message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/53940
http://www.vupen.com/english/advisories/2009/3025
http://www.securityfocus.com/archive/1/508126/100/0/threaded
http://www.securityfocus.com/archive/1/507376/100/0/threaded