Wireshark D5 V5 - HTTP analysisMTP analysis

The video tutorial explains the Simple Mail Transfer Protocol (SMTP) and its main commands: Mail, RCPT, and Data. It demonstrates how to set up a demo environment using a Windows machine, telnet client, and Wireshark for capturing SMTP traffic. The tutorial guides viewers through sending an email via telnet to an SMTP server on Port 25, analyzing the communication using Wireshark, and understanding SMTP response codes. The video also covers setting up a temporary email address for testing and provides insights into SMTP response codes, similar to HTTP codes, indicating success, processing, or errors.

Explain the significance of the 'DATA' command in the email sending process.

What does a response code starting with '2' indicate in SMTP?