 Название: Run Your Own Mail Server
Автор: Michael W Lucas
Издательство: Tilted Windmill Press
Год: 2024
Страниц: 350
Язык: английский
Формат: pdf (true), epub
Размер: 10.1 MB
You Against the Email Empire.
Message services appear and disappear, but email remains. One of the Internet's oldest and most open protocols, email reaches everywhere. Dominated by a handful of carriers, yet still manageable by the rest of us. If you do it right.
Setting up the email server is the easy part. The protocols that support email? Those are hard. SPF. DKIM. DMARC. BIMI and MTA-TLS and TLS-RPT. DNS standards that apply to nothing else on the modern Internet. Block lists. Graylisting. Email is a protocol unlike any other, yet among our most essential.
Email is the heart of the Internet. Online forums and social media and chat systems have blossomed and thrived with the web, but like dedicated Star Wars fans we keep returning to the classics. Email works everywhere with an Internet connection, and in many places without. Unlike chats, where the other people involved see that you’ve received their message and are choosing to ignore them, you answer email when you feel like it. Your correspondents don’t get a notification that you’re typing a reply and watch the screen until you compose words. Email is one of the few surviving asynchronous communication tools available on every platform.
Who Should Read This Book:
Read this book if you want to run an email server for a small organization, for yourself and your friends, or just you. This book will not prepare you to run email for a global enterprise or a large mailing list, but it will provide a foundation for you to study those advanced cases. Most people with the background necessary for running their own mail system have several domain names, one or two organizations that they’d like to help, and perhaps even a friend. This book is designed to let you support those folks in a scalable manner. The common sysadmin tendency to offer too much help, become overloaded, and implode is left for you to cope with.
Prerequisites:
This is a book for beginning email operators, but it’s not a book for a beginner sysadmin. You must have certain skills before you can hope to run an email server. Experienced mail administrators can probably work around many of the requirements below, but beginners shouldn’t make their education any more difficult than necessary. You must have used email. I will not explain what email addresses and attachments are.
You must know how to manage your operating system. You need to back up your hosts, apply security updates, know the difference between network and local sockets, and in general make your hosts fit to sit on the naked Internet. This book assumes and recommends open-source software. I demonstrate everything with Postfix running on FreeBSD or Debian Linux.
Contents:
Chapter 0: Introduction...........17
Chapter 1: Unix and Email......49
Chapter 2: The Simple Mail Transfer Protocol....69
Chapter 3: Postfix and Dovecot Setup..........91
Chapter 4: Virtual Domains..119
Chapter 5: IMAP and Submission................139
Chapter 6: Database Back Ends.................163
Chapter 7: Rspamd Essentials..................179
Chapter 8: MX and SPF Records.................211
Chapter 9: Protocol Checks and Block Lists......229
Chapter 10: DomainKeys Identified Mail..........249
Chapter 11: DMARC.............263
Chapter 12: Webmail .............279
Chapter 13: Filtering with Sieve........287
Chapter 14: Managing Rspamd.............299
Chapter 15: Technical Edges......315
Afterword: Living Independent...........335
Sponsors....337
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