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System Administration

Week 8, The Simple Mail Transfer Protocol

In this video, we begin our discussion of E-Mail by looking at the components of the larger mail system (the Mail User Agent, Mail Transfer Agent, Mail Delivery Agent, Access Agent); we observe the packets involved in a simple #SMTP exchange and track an email from one system to the other, both through the logs and on the wire, before we then learn to speak SMTP via telnet(1).

https://youtu.be/Ai8rjqelwsI