sendmail, 4th Edition by Claus Assmann
O'Reilly Media; Fourth Edition | November 5, 2007 | English | ISBN: 0596510292 | 1310 pages | PDF | 7 MB
A classic O'Reilly title since 1993, sendmail now covers Versions 8.10 through 8.14 of this email routing program, including dozens of new features, options, and macros. This edition also takes a more nuts-and-bolts approach than its predecessors. It includes both an administration handbook and a reference guide that provide you with clear options for installing, configuring and managing sendmail's latest versions and companion programs.