Email Tutorials - Herong's Tutorial Examples - v1.04, by Herong Yang
Email Message Format and Headers
This chapter provides introductions and tutorial examples on email message format. Topics include email message headers and content; commonly used header names; encoded non-ASCII characters in content and headers; HTML formatted content; attachment files; email message examples.
Email Message Format and Example
What Are Email Message Headers
Content-Type: text/html - HTML Content
Content-Type: multipart/alternative; boundary="..."
Content-Type: multipart/mixed; boundary="..."
Content-Transfer-Encoding: 8bit - Non-ASCII Content
Content-Transfer-Encoding: base64 - Base64 Encoded Content
Content-Transfer-Encoding: quoted-printable - 7-Bit Encoding
Subject: =?...?= - 7-Bit Encoding
From: ... - Email "From" Address
Takeaways:
Table of Contents
Postfix - Mail Transport Agent (MTA)
SSL/TLS Secure Connections with Postfix Server
Dovecot - IMAP and POP3 Server
SSL/TLS Secure Connections with Dovecot Server
Email Client Tools - Mail User Agents (MUA)
Mozilla Thunderbird - Mail User Agents (MUA)
PHPMailer - PHP Package for Sending Emails