Tag: TCP

SMTP Explained: How Emails Travel Across the Internet

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Email has become one of the most essential tools for communication, both in personal and professional contexts. However, few people stop to consider the intricate process that occurs when you click “Send.” At the heart of this process is SMTP, or Simple Mail Transfer Protocol, which ensures your email reaches its intended recipient. In this blog post, we will delve into the details of SMTP, explaining how it works, its common pitfalls, and the importance of monitoring it.

What is SMTP?

SMTP, or Simple Mail Transfer Protocol, is the standard protocol for sending emails across the Internet. Introduced in 1982, SMTP has become the foundational technology that allows email communication to occur. Operating over the Transmission Control Protocol (TCP), SMTP is designed to ensure that emails are delivered reliably and accurately from the sender to the recipient.

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How the Internet really works: TCP/IP and DNS

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Almost everybody uses the Internet, but how many people know how it works? If you want to learn how the Internet works and what those strange abbreviations TCP/IP and DNS are, this article is perfect for you.

What is the Internet?

Simply put, the Internet is a global network of networks. It connects multiple sub-networks together with long cables that go under the seas and reach each of the continents. Yes, the connection could be wireless too, but the big transfers happen through wires.

As you can imagine, there are billions of connected devices out there. To have a common network like the Internet, we need to have standards. Each device must obey the same rules, receive and send standardized messages, and understand them. Here comes the TCP/IP.

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