Buffer overflow in IMail Client 9.22, as shipped with IPSwitch IMail Server 2006.22, allows remote attackers to execute arbitrary code via a long boundary parameter in a multipart MIME e-mail message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/38151
http://www.vupen.com/english/advisories/2007/3659
http://www.securityfocus.com/bid/26252