Tag Archives: Directory Harvesting

Directory harvest attacks are one of the many threats email administrators must deal with. SMTP tarpitting is an effective defence. This post goes over the mechanics of the attack, and the details of the defence.

Have you ever wondered how spammers manage to find your email address and start sending you junk and scam emails?  In this post I’ll describe three ways in which spammers are able to get their hands on lists of valid …

Directory Harvesting is a term used to describe a technique used by spammers to discover valid email addresses, usually targeting corporate networks. Spammers try to use this technique to trick an email system into telling them which email addresses are …