Security Investigate

How to Block NDR Spam

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Executive Summary

Spam generates an enormous amount of traffic that is both time-consuming to handle and resource intensive. Apart from that, a large number of organizations have been victims of NDR spam that has an effect similar to a Distributed Denial of Service on the email system. This paper provides a technical explanation of NDR Spam and recommends solutions that can prevent or limit exposure to this kind of unsolicited email.

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