E-mail is the most widely used application on the Internet. Exim is rapidly becoming one of the most widely used mail servers, handling mail for tens of millions of users daily. Exim is free software. It's easy to configure. It's scalable, running on single-user desktop systems as well as on ISP servers handling millions of users. (It's the default server on many Linux systems, and it's available for countless versions of UNIX.) Exim is fast, flexible, and reliable. It is designed not to lose messages even if your server machine crashes. It can be used as a secure Internet-facing front-end to other, proprietary, mail systems used internally in your organisation. Exim supports lookups from LDAP servers, SQL databases, and other data sources, letting you automate maintenance and configuration. It can work in conjunction with other tools for virus-checking and spam-blocking, to reject unwanted e-mails before they even enter your site. This book will help you deploy Exim as your SMTP e-mail server throughout your organisation, and to configure, tune, and secure your Exim systems.

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Description de la librairie

In 2002, World of Books Group was founded on an ethos to do good, protect the planet and support charities by enabling more goods to be reused. Since then, we've grown into to a global company pioneering the circular economy. Today, we drive the circular economy through three re-commerce brands: - Wob: Through Wob, we sell. We provide affordable, preloved books and media to customers all over the world. A book leaves our collection of over seven million titles and begins a new chapter every two seconds, enabling more goods to be reused. - Ziffit: Through Ziffit, we buy. We give people around the world the opportunity to contribute to the circular economy, earn money and protect the planet, by trading their unwanted books and media. - Shopiago: Through Shopiago, we help others. By sharing the technology that has grown World of Books Group into the business it is today, we?re helping charities increase revenue and reduce waste through re-commerce.

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