- Sendmail, 4th ed.,
by Bryan Costales, Claus Assmann, George Jansen and Gregory Shapiro (O'Reilly, 2007).
- The latest edition of the "Bat Book"--the most
authoritative source of information on sendmail. Updated to cover
sendmail versions through 8.14. This is a "must have" for any serious
- sendmail Performance Tuning, by Nick Christenson
(Pearson Education, 2002).
- If a high-performance, high-volume mail server is your goal,
this is the book for you! Based on sendmail 8.12.
- sendmail Milters: A Guide for Fighting Spam, by
Bryan Costales and Marcia Flynt (Addison, Wesley 2005).
- Before discussing mail filters (milters), the authors spend
significant time describing the history and characteristics of
spam. They then talk about test environments, the milter API and
"nuts and bolts." The book is a good read--even if you don't want
to write your own milter! Based on sendmail 8.12.
- sendmail 8.13 Companion, by Bryan Costales with
Gregory Neil Shapiro and Claus Assmann (O'Reilly, 2004).
- You won't need this book if you own the 4th edition of the
"Bat Book" (above) This was written to update the 3rd
edition of that book, which has now been superseded.
- Sendmail Cookbook, by Craig Hunt (O'Reilly,
- Although becoming "dated," you might still be able to find one
of its recipes to make sendmail do what you want.
- Linux Sendmail Administration, by Craig Hunt
- Once a useful book, this title is probably no longer worth your
time and money (unless you can purchase if used for a few
dollars). After reading it as a tutorial, you should probably
supplement its contents with the latest edition of the Bat Book
(above). This title is based on sendmail 8.11.
- Sendmail: Theory and Practice, 2nd ed., by Paul
A. Vixie, Frederick M. Avolio (Digital Press, 2002).
- Do not buy this book if you are interested in learning
how to generate a "modern" sendmail.cf file or how virtusertable
works--it doesn't include current information on features added to
sendmail since the late 1990's. Purchase this book only if
you are interested in a historical view of sendmail as it existed
in the 1990's. It includes in-depth discussions of (now)
seldom-used UUCP and DECnet, as well as coverage of old mail
transfer and user agents (but no mention of the more recent Qmail,
Postfix or Exim).
- SSL and TLS: Designing and Building Secure
Systems, by Eric Rescorla (Addison-Wesley, c2001).
- A thorough and understandable treatment of Secure Socket
Layer/Transport Layer Security.
- Network Security with OpenSSL, by John Viega, Matt
Messsier, Pravir Chandra (O'Reilly, 2002).
- Focuses on OpenSSL's implementation of SSL/TLS. (OpenSSL is used
by Apache Web Server, sendmail, and numerous other Open Source
- SSL & TLS Essentials: Securing the Web, by
Stephen A. Thomas (Wiley, c2000).
- A quick introduction to SSL and TLS.
- Applied Cryptography, Second Edition: Protocols,
Algorithms, and Source Code in C, by Bruce Schneier,
- Everything you want to know about the underlying technologies
used by SSL and TLS. Thorough, well-written, understandable.