SMTP Handshake | SMTP Format | EHLO/HELO | STARTTLS | MAIL FROM | RCPT TO | Computer Networking

In this video, we’re going deep into the plumbing of the internet. We strip away the modern UI and look at SMTP (Simple Mail Transfer Protocol) in its rawest form.

We walk through the two most critical phases of an email transaction: the Standard Handshake and the Security Layer (STARTTLS). You’ll see exactly how a client talks to an SMTP server using raw ASCII commands and how we modernize that connection to keep your data secure.
The TCP Connection: Knocking on Port 25 via Telnet.

HELO vs. EHLO: Introducing yourself to the server.

The Envelope: Defining MAIL FROM and RCPT TO (it's not what you think!).

The Data: The "Golden Rule" of blank lines and the final period.
The Plain Text Problem: Why the original 1982 standard is a security nightmare.

STARTTLS: Upgrading an insecure connection to TLS mid-stream.

AUTH LOGIN: How servers verify identity using Base64 encoding.

The Full Modern Flow: A complete look at a secure transaction with a provider like Gmail.

#SMTP #Networking #WebDevelopment #SoftwareEngineering #CyberSecurity #CodingDeepDive #Telnet

Видео SMTP Handshake | SMTP Format | EHLO/HELO | STARTTLS | MAIL FROM | RCPT TO | Computer Networking канала Rajat Verma