> Hunting for malware requires highly specialized knowledge of the intricacies of the domain name system—the protocol that allows us to type email addresses and website names to initiate communication.

No, it doesn't. DNS has virtually nothing to do with malware. There are many, many more relevant underlying protocols (like the Internet Protocol itself) that have far more relevance in how malware communicates across the internet.

> DNS enables our words to set in motion a chain of connections between servers, which in turn delivers the results we desire.

What? All DNS does is resolve a name to an IP address. That's it. It doesn't set anything into motion. It's a simple translation. It's up to the software on the client-side to then proceed to make connections or send packets to the IP address that was resolved.

> Before a mail server can deliver a message to another mail server, it has to look up its IP address using the DNS.

Only if the source server chooses to use DNS; granted, most server configurations would.