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Sophos Support Fundamentals: Email

An overview of the fundamentals of email. We cover the basic email flow concept, STMP connection process, commands, status codes, and go through an example STMP session.

*Video Chapters*

00:10 Overview
01:30 SMTP Basics
02:34 Connection Process
03:23 Commands & Status Codes
06:33 Example Session

*Relevant Resources*

SMTP Communication:
https://learn.microsoft.com/en-us/exchange/mail-flow/test-smtp-telnet?view=exchserver-2019

SMTP Status Codes:
https://blog.mxtoolbox.com/2011/08/30/400-500-email-bounce-back-errors-explained/

Common Technical Terms in Email:
https://www.mailgun.com/resources/learn/glossary/mail-transfer-agent/#:~:text=A%20Mail%20Transfer%20Agent%20(MTA,to%20access%20or%20send%20emails.

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