9 .Books about mail processing technology
11 - [[[KyleDDent04]]] Kyle D Dent.
12 'Postfix: The Definitive Guide'.
13 O'Reilly & Associates, 2004.
16 - [[[Schwartz04]]] Alan Schwartz.
18 O'Reilly & Associates, 2004.
23 .Books about related technology
25 - [[[Hertzog13]]] Raphaƫl Hertzog & Roland Mas.
26 https://debian-handbook.info/download/stable/debian-handbook.pdf[The Debian Administrator\'s Handbook: Debian Jessie from Discovery to Mastery],
30 - [[[Bir96]]] Kenneth P. Birman.
31 'Building Secure and Reliable Network Applications'.
32 Manning Publications Co, 1996.
35 - [[[Walsh10]]] Norman Walsh.
36 'DocBook 5: The Definitive Guide'.
37 O'Reilly & Associates, 2010.
40 - [[[Richardson07]]] Leonard Richardson & Sam Ruby.
41 'RESTful Web Services'.
45 - [[[Friedl97]]] Jeffrey E. F. Friedl.
46 'Mastering Regular Expressions'.
47 O'Reilly & Associates, 2006.
50 - [[[Mauerer08]]] Wolfgang Mauerer.
51 'Professional Linux Kernel Architecture'.
52 John Wiley & Sons, 2008.
55 - [[[Loshin03]]] Pete Loshin,
56 'IPv6: Theory, Protocol, and Practice, 2nd Edition'.
57 Morgan Kaufmann, 2003.
60 - [[[Loeliger12]]] Jon Loeliger & Matthew McCullough.
61 'Version Control with Git: Powerful tools and techniques for
62 collaborative software development'.
63 O'Reilly and Associates, 2012.
66 - [[[Ahmed16]]] Wasim Ahmed.
67 'Mastering Proxmox - Second Edition'.
68 Packt Publishing, 2016.
73 .Books about related topics
75 - [[[Bessen09]]] James Bessen & Michael J. Meurer,
76 'Patent Failure: How Judges, Bureaucrats, and Lawyers Put Innovators at Risk'.
77 Princeton Univ Press, 2009.