### 1.1 What this Book Contains ¶

This book addresses a wide audience of both system administrators and users that aim to use Mailutils programs, and programmers who wish to use Mailutils libraries in their programs. Given this audience, the book is divided in three major parts.

The first part provides a detailed description of each Mailutils utility, and advices on how to use them in various situations. This part is intended for users and system administrators who are using Mailutils programs. If you are not interested in programming using Mailutils, this is the only part you need to read.

Subsequent parts address programmers.

The second part is a tutorial which provides an introduction to programming techniques for writing mail applications using GNU Mailutils.

Finally, the third part contains a complete Mailutils library reference.

This version of the book is not finished. The places that may contain inaccurate information carry prominent notices stating so. For updated versions of the documentation, visit http://mailutils.org/manual. All material that ends up in this document is first published in the Mailutils Wiki, available at http://mailutils.org/wiki. Be sure to visit it for latest updates.

If you have any questions that are not answered there, feel free to ask them at the mailing list bug-mailutils@gnu.org.