Email Fundamentals
How email moves across the internet — protocols, headers, and the path from sender to inbox.
- Reading time:
- 12 min
- Difficulty:
- Beginner
- Estimated duration:
- 12 min
- Prerequisites:
- None
- Last updated:
- July 2026
- Author:
- Empire
How email moves across the internet — protocols, headers, and the path from sender to inbox.