Secunia Security Advisory – Dr_insane has reported a vulnerability and a weakness in netMailshar Professional, which can be exploited by malicious people to disclose sensitive information and identify valid user accounts.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/37398/sa15038.txt
Source: https://packetstormsecurity.com/files/37398/Secunia-Security-Advisory-15038.html