How Does Email Work? (Email Explained - Nerd Edition)
Email is the most widely used communication medium in the world.
Yet it operates on a very unique protocol, that isn't widely discussed.
In this video, we dive in to how email works, how messages are sent and read, how attachments work, encryption, servers, centralization and much more. This video covers how various functionality of emails work, but without getting too technical.
Timestamps:
00:00:36 - History
00:04:00 - Software components
00:05:53 - Mail servers
00:09:19 - Email is decentralized
00:13:00 - Email and DNS
00:18:22 - Mail headers, replies, spoofed headers
00:23:00 - To, Cc, Bcc
00:28:38 - Reply-To and sending many emails
00:31:18 - How you get your emails off your server
00:35:31 - POP3
00:41:16 - IMAP
00:44:32 - Pull vs push based synchronization
00:47:05 - Sending mail (and the 'sent' folder)
00:50:14 - Attachments as plain text (and base64)
00:58:06 - HTML emails
01:03:35 - Encryption (SSL/TLS vs E2EE)
01:11:16 - DKIM, SPF, fighting spoofing
01:14:17 - Conclusion
Yes this is a long video - this is a bit of a recurring trend with my videos, but I didn't want to split it up in this case. Feel free to watch at 2x!
Thanks for watching! I hope this video helped you out!
Produced by Tony Tascioglu
https://tonytascioglu.com
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