What Happens to an Email After You Click "Send"?

The video explains the significance of email as a communication tool, detailing the process of sending and receiving emails through various systems like SMTP and MTA. It highlights the role of headers in tracking email paths and discusses security measures like spam filters and blacklists to protect users from phishing and spoofing attacks. The video also covers advanced spam techniques and the constant battle to filter out malicious emails while ensuring legitimate ones are delivered.

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