Scanning at the envelope reception stage allows Network Box make a decision whether to accept the message for actual scanning or reject it based on the fact that the recipient does not exist.
In this whitepaper, you will learn:
- How the SMTP protocol is divided in relation to this feature
- How this feature allows considerable savings of CPU and bandwidth
- Why Spammers send emails to users that don't exist - the industry calls this Directory Harvest Attack (DHA)
- How Network Box integrates this with the firewall to block spammers from making further SMTP connections to your box, thus further reducing the CPU and bandwidth usage.
Read our whitepaper to learn more about this feature and what benefits it can bring to your email protection and bandwidth utilization.