Multiple stack-based buffer overflows in the (1) POP3 and (2) IMAP services in IBM Lotus Domino allow remote attackers to execute arbitrary code via non-printable characters in an envelope sender address, aka SPR KLYH87LLVJ.
http://zerodayinitiative.com/advisories/ZDI-11-045/
http://www.securityfocus.com/archive/1/516232/100/0/threaded