Why This Companion Book

A separate book, containing mostly tables, proved a valuable companion to the second edition of sendmail (O’Reilly). It facilitated the easy lookup of options, macros, and other features, and aided in the day-to-day management of the sendmail program. Just as that companion book proved a valuable enhancement of the second edition, so, too, will this book prove an enhancement of the third.

This book also documents the improvements that have been added to the new V8.13 sendmail. Thus, all tables in this book include items from both the third edition and V8.13 sendmail. We hope that this combination will prove more valuable by synergy than would either in a standalone volume.

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