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Keeping Your Infrastructure Safe
Email threats come not only in content, but in volume and invasiveness. Directory Harvest Attacks (DHA) and Denial of Service (DoS) attacks can bring down an organization’s email infrastructure due both to the sheer quantity of email traffic they generate and the debilitating invasion of the network they facilitate. MailFrontier provides unique email traffic management to protect your email infrastructure.

Directory Harvest Attack
An exhaustive “brute force“ attack, DHAs bombard mail servers with emails sent to variations of possible email addresses to check which bounce and which are legitimate email addresses. The extensive volume of a DHA strains the email infrastructure. In addition, a DHA acquires information on email addresses for the company to be used later in follow-up, targeted spam, virus, and phishing attacks.

Denial of Service (DoS) Attack
A DoS attack is a malicious attempt to bring down your email infrastructure. By sending an enormous volume of email traffic into an organization at a coordinated time, attackers attempt to overwhelm the network and email infrastructure, bringing email to a complete stop.

MailFrontier Email Traffic Management
To prevent DHA and DoS attacks, MailFrontier manages your email traffic not only at the message level, but also at the connection level. MailFrontier combines email pattern analysis with corporate directory synchronization data to determine legitimate and illegitimate server connection attempts. If an email sender is found to have bad email traffic practices by repeatedly sending emails to non-legitimate email addresses for the company, the emails from that sender can be deferred or blocked, keeping the emails from entering the network.

This Email Traffic Management reduces the load placed on the entire infrastructure by preventing illegitimate emails from going in through the entire mail system and preventing bounces providing corporate directory information from flowing back out.