Email is the most important communications technology of our time. In this episode we explain how it works behind the scenes. We talk about how email clients talk to email servers, including protocols like SMTP, IMAP, and POP3. We discuss email's format, security, and ecosystem. We touch on spam filters, and end with a call-to-arms about keeping the email ecosystem open.

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Theme “Place on Fire” Copyright 2019 Creo, CC BY 4.0

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