Concatus IMate Web Mail Server 2.5 - Remote Buffer Overflow
source: https://www.securityfocus.com/bid/1286/info
Sending an email to a Concatus IMate Web Mail Server 2.5 with a server name consisting of over 1119 characters will cause the application to crash. Restarting the program is required in order to regain normal functionality.
Telnet target 25
HELO <String of 1119 characters or more>