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author meillo@marmaro.de
date Mon, 12 Jan 2009 12:51:26 +0100
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1 MTA comparision
2 ===============
3
4 Candidates:
5 - sendmail
6 - postfix
7 - qmail
8 - exim
9 - masqmail
10
11 - (exchange, ...)
12
13
14 Author
15 ------
16 sendmail: Eric Allman and others, now Sendmail Inc.
17 postfix: Wietse Venema and many others
18 qmail: Daniel J. Bernstein
19 exim: Philip Hazel
20 masqmail: Oliver Kurth
21 exchange: Microsoft Corporation
22
23
24 License
25 -------
26 sendmail: Sendmail License
27 postfix: IBM Public License
28 qmail: public domain
29 exim: GPL
30 masqmail: GPL
31 exchange: MS-EULA
32
33
34 First release
35 -------------
36 sendmail: 1983
37 postfix: 1999
38 qmail: 1995
39 exim: 1995
40 masqmail: 1999
41 exchange: 1993
42
43
44 Lines of code (with sloccount on debian packages)
45 -------------------------------------------------
46 sendmail: 93k
47 postfix: 92k
48 qmail: 18k
49 exim: 54k
50 masqmail: 14k
51 exchange: (no source available)
52
53
54 Architecture
55 ------------
56 sendmail: monolitic
57 postfix: modular
58 qmail: modular
59 exim: monolitic
60 masqmail: monolitic
61 exchange: (unknown)
62
63
64 Design goals
65 ------------
66 sendmail: flexibility
67 postfix: performance and security
68 qmail: security
69 exim: general, flexible & extensive facilities for checking
70 masqmail: for non-permanent internet connection
71 exchange: groupware
72
73
74 Market share (by Bernstein in 2001)
75 -----------------------------------
76 sendmail: 42%
77 postfix: 1.6%
78 qmail: 17%
79 exim: 1.6%
80 masqmail: (unknown)
81 exchange: 18%