sendmail
by By Costales, Bryan, Allman, Eric, and Rickert, Neil
Category: Computers , Networking , General

This Nutshell Handbook® is far and away the most comprehensive book  ever written on sendmail, the program that acts like a traffic cop in  routing and delivering mail on UNIX-based networks. Although sendmail  is used on almost every UNIX system, it's one of the last great  uncharted territories--and most difficult utilities to learn-- in UNIX system administration.This book provides a complete sendmail tutorial, plus extensive  reference material on every aspect of the program. What's more, it's  authoritative, having been co-authored by Eric Allman, the developer  of sendmail, and Neil Rickert, one of the leading sendmail gurus on  the Net.This book covers both IDA sendmail and the latest version (V8)  from the University of California, Berkeley. It also covers the standard versions available on most systems, such as those found on Sun and DEC/Ultrix workstations.The book is divided into four parts. Part One is a tutorial on  understanding sendmail from the ground up; starting from  an empty file, it has the reader work through exercises, building  a configuration file and testing the results. Part Two covers practical  issues in sendmail administration. Part Three is a comprehensive  reference section, while Part Four consists of appendices and a bibliography.