MICRO-COURSE

How Email Works

How Email Works: 10 short lessons, one for each concept. SMTP, IMAP and POP3, MX records, SPF, DKIM, DMARC, email deliverability, spam filtering, transactional email services, and email clients and webmail.

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01 / WATCH

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02 / UNDERSTAND

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SMTP, IMAP and POP3, MX records, SPF, DKIM, DMARC, email deliverability, spam filtering, transactional email services, and email clients and webmail.

This is a learning outline. A complete worked tutorial has not been published for this topic yet.

Concept scope

03 / TRY IT

Prepare a focused example

Choose one question about How Email Works that you want to answer.
Write down a small example, its inputs or starting point, and the result you expect.
Explain your reasoning and note what you would like reviewed in a live or 1:1 session.

Keep your work

A short example, reasoning and an open question

Check your understanding

Explain the concept in your own words and identify where it fits in the subject.
Show one small example, the expected result and the reasoning behind it.
Record one limitation or edge case and a question to discuss with a mentor.

04 / LEARN WITH HELP

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CONTINUE WITH ONE CONCEPT

Explore 10 focused topics.

Each topic opens its own micro-course, with its learning guide, recording status and session requests.

10 results1–10

Lesson

SMTP

A short lesson on SMTP from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

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Lesson

IMAP and POP3

A short lesson on IMAP and POP3 from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

Open lesson

Lesson

MX records

A short lesson on MX records from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

Open lesson

Lesson

SPF

A short lesson on SPF from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

Open lesson

Lesson

DKIM

A short lesson on DKIM from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

Open lesson

Lesson

DMARC

A short lesson on DMARC from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

Open lesson

Lesson

Email deliverability

A short lesson on email deliverability from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

Open lesson

Lesson

Spam filtering

A short lesson on spam filtering from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

Open lesson

Lesson

Transactional email services

A short lesson on transactional email services from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

Open lesson

Lesson

Email clients and webmail

A short lesson on email clients and webmail from the How Email Works micro course: what it is, where it shows up in real systems, and a practical example you can apply.

Open lesson

How Email Works

Recorded video

Start with the topic guide.

Concept scope

Prepare a focused example

Check your understanding

Need a walkthrough?Stay with this topic.

Request a live session for this topic.

Explore 10 focused topics.

SMTP

IMAP and POP3

MX records

SPF

DKIM

DMARC

Email deliverability

Spam filtering

Transactional email services

Email clients and webmail

Need a walkthrough?
Stay with this topic.