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Paperback. You Against the Email EmpireMessage 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.Never surrender the protocols.Reclaim your connections.Run your own mail server. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.

Foundations of Python Network Programming, Third Edition, covers all of the classic topics found in the second edition of this book, including network protocols, network data and errors, email, server architecture, and HTTP and web applications, plus updates for Python 3.Some of the new topics in this edition include:· Extensive coverage of the updated SSL support in Python 3· How to write your own asynchronous I/O loop.· An overview of the "asyncio" framework that comes with Python 3.4.· How the Flask web framework connects URLs to your Python code.· How cross-site scripting and cross-site request forgery can be used to attack your web site, and how to protect against them.· How a full-stack web framework like Django can automate the round trip from your database to the screen and back.If you're a Python programmer who needs a deep understanding of how to use Python for network-related tasks and applications, this is the book for you. From web application developers, to systems integrators, to system administrators—this book has everything that you need to know.

Postfix is a Mail Transfer Agent (MTA): software that mail servers use to route email. Postfix is highly respected by experts for its secure design and tremendous reliability. And new users like it because it's so simple to configure. In fact, Postfix has been adopted as the default MTA on Mac OS X. It is also compatible with sendmail, so that existing scripts and programs continue to work seamlesslyafter it is installed.Postfix was written by well-known security expert Wietse Venema, who reviewed this book intensively during its entire development. Author Kyle Dent covers a wide range of Postfix tasks, from virtual hosting to controls for unsolicited commercial email.While basic configuration of Postfix is easy, every site has unique needs that call for a certain amount of study. This book, with careful background explanations and generous examples, eases readers from the basic configuration to the full power of Postfix. It discusses the Postfix interfaces to various tools that round out a fully scalable and highly secure email system. These tools include POP, IMAP, LDAP, MySQL, Simple Authentication and Security Layer (SASL), and Transport Layer Security (TLS, an upgrade of SSL). A reference section for Postfix configuration parameters and an installation guide are included.Topics include:Basic installation and configurationDNS configuration for emailWorking with POP/IMAP serversHosting multiple domains (virtual hosting)Mailing listsHandling unsolicited email (spam blocking)Security through SASL and TLS From compiling and installing Postfix to troubleshooting, Postfix: The Definitive Guide offers system administrators and anyone who deals with Postfix an all-in-one, comprehensive tutorial and reference to this MTA.

Foundations of Python Network Programming, Third Edition, covers all of the classic topics found in the second edition of this book, including network protocols, network data and errors, email, server architecture, and HTTP and web applications, plus updates for Python 3.Some of the new topics in this edition include:· Extensive coverage of the updated SSL support in Python 3· How to write your own asynchronous I/O loop.· An overview of the "asyncio" framework that comes with Python 3.4.· How the Flask web framework connects URLs to your Python code.· How cross-site scripting and cross-site request forgery can be used to attack your web site, and how to protect against them.· How a full-stack web framework like Django can automate the round trip from your database to the screen and back.If you're a Python programmer who needs a deep understanding of how to use Python for network-related tasks and applications, this is the book for you. From web application developers, to systems integrators, to system administrators—this book has everything that you need to know.

The OAuth 2.0 authorization framework has become the industry standard in providing secure access to web APIs. It allows users to grant external applications access to their data, such as profile data, photos, and email, without compromising security. OAuth 2.0 Simplified is a guide to building an OAuth 2.0 server. Through high-level overviews, step-by-step instructions, and real-world examples, you will learn how to take advantage of the OAuth 2.0 framework while building a secure API.