... sendmail.The DNS is well documented in the book DNS and BIND, Fifth Edition by PaulAlbitz and Cricket Liu (O’Reilly).The protocols used to communicate over the Internet are well documented in thebook ... Book, eMatter Edition Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.xvPrefaceChanges Since the Previous Edition The primary reason for this book, the fourth edition of ... information into this book, we have fixed allthe errata in the third edition to make this fourth edition much more accurate.This edition of the sendmail book assumes you are using V8.14, the current...