Qualcomm Eudora Internet Mail Server (EIMS) before 3.2.8 allows remote attackers to cause a denial of service (crash) via (1) malformed NTLM authentication requests, or a malformed (2) Incoming Mail X or (3) Temporary Mail file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24033
https://exchange.xforce.ibmcloud.com/vulnerabilities/24032
http://www.vupen.com/english/advisories/2006/0099
http://www.securityfocus.com/bid/16179