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Revision 12 - (show annotations) (download)
Tue Sep 11 17:30:03 2007 UTC (5 years, 8 months ago) by zobel
File size: 5271 byte(s) 
adding a paragraph about amavis
1 From: whoever sends this
2 Subject: Bits from the listmasters
3
4 Hi everyone,
5
6 as you might have already read from several posts on debian-devel or
7 debian-user, lists.debian.org has got a new spam filter setup. This was
8 done during the listmaster@ + owner@bugs meeting last week in Essen,
9 Germany. But everything in a row:
10
11 * Amavis-Setup
12 The new spam filter setup of lists.debian.org includes the use of
13 amavisd-new. We are using a feature called policy-banks, where we
14 grouped all 186 mailing lists into the following policy banks plus a
15 few more administrative once:
16
17 * bug
18 * en-ht
19 * en-lt
20 * lang-arabic
21 * lang-asian
22 * lang-esperanto
23 * lang-french
24 * lang-germanic
25 * lang-greek
26 * lang-hu-fi
27 * lang-indic
28 * lang-indonesic
29 * lang-romanic
30 * lang-scandinavic
31 * lang-slavic
32
33 Each policy bank has it's own spam filtering setup. Most of it can be
34 looked at, as it is checked into svn[1]. To find out to which policy
35 bank a list belongs, look for the X-Virus-Scanned header in the email.
36
37 Advantage of this new setup is now, that we can distinguse between
38 different list types, and can set filters and scorings for each
39 list(type) on it's own.
40
41 Mails to each list can be "ham", "maybe-spam" and "spam". For unsure
42 candidates (maybe-spam) we are currently implementing some queueing
43 mechanism, which allows us to delay these mails for a while and
44 on recheck them after a defined time has passed.
45
46 * Gandalf
47 * In progress
48
49 * SVN on Alioth
50
51 * Sourcecode available
52
53 * Statistics
54
55 * Team members
56
57 * Clean up
58
59 * Improvement to listmaster tools with regards to d.o
60
61 * whitelist
62
63 * While it is possible to post with an address which isn't subscribed
64 to the lists, we recommend that you subscribe to our white-list
65 (http://lists.debian.org/whitelist/) so that our system recognizes
66 you. This will make spamassassin and crossassassin like you better.
67
68 * Cooperation between bugs and lists -- cooperation with other
69 mail-related teams solicited.
70
71
72
73 [1] http://svn.debian.org/wsvn/pkg-listmaster/
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96 2. New & changed lists
97 debian-mirrors:
98 FIXME
99 debian-mirrors-announce:
100 That list is now moderated.
101 debian-publicity:
102 FIXME
103
104 3. Current statistics
105 There are now XXX lists, with XXX subscribed email addresses
106 (XXX of which are unique).
107
108 Top 10 Subscriber Count by list
109 -------------------------------
110
111 Statistics per day:
112 -------------------
113
114 postfix stats: (average from 20 days.)
115
116 spamassassin stats (average from 20 days.)
117
118 smartlist stats (average from 6 days)
119
120 4. How to help listmasters against spam.
121
122 * If you notice a spam in the list archives, press the 'Report As
123 Spam'-Button.
124
125 * If you run some spam-protecting mechanisms like
126 + greylisting
127 + tdma (challenge-response system)
128 + virus scanner
129 + spamscanner
130
131 make sure that it doesn't reject mails from murphy.debian.org (and
132 master.debian.org), as our bounce detection software is likely to
133 unsubscribe you. From the figures above you can see that we filter
134 a lot of spam and malware, but as long as we run on the
135 posting-is-open-for-everyone policy, there will always new kinds of
136 junk that will pass our filters.
137
138 * Do not ever report spam received through our lists to third parties
139 services. They are likely to blacklist us or complain to our ISP,
140 both of which result in degraded performance for yourself and
141 others. This is also likely to cause tension between us, our
142 sponsors and their ISPs.
143
144 * Report spam that gets to you through our filters to
145 report-listspam@lists.debian.org. Please leave all the headers
146 untouched. The best method is to bounce (as in mutt) them. There is a
147 plugin for thunder^Wicesomething to do that at
148 http://mailredirect.mozdev.org/ . DON'T do that automagically, if
149 you want to help us, you must make personally sure that the things
150 you report are REALLY spam.
151
152 * If you receive lots of spam and know how to stop it through
153 procmail or spamassassin, send us (listmaster@lists.debian.org) a
154 note with the recipe, or contact us in OFTC #debian-lists
155
156 * If you really want to use some kind of auto-responder, make sure
157 that it is sane, and interprets the Lists and Precedence-Headers
158 correctly so it ignores our mails. If we find that your mail
159 address issues automatic responses to the list or subscribers,
160 we'll unsubscribe you from all lists.
161
162 * Don't subscribe to our lists with a forwarding mail address, if
163 something goes wrong with the mail address you are forwarding to, it
164 will be harder for us to find out exactly which address we should
165 be removing. Instead, please subscribe with the address on which
166 you will be reading the mail.
167
168
169 5. Reorganization of the Listarchives and Listmaster teams
170
171 The Listmaster and Listarchives teams have been merged together as
172 the split was causing a few difficulties, for the odd person who
173 wasn't already on both teams.
174
175 Two new members have also been added to the listmaster group: Frans
176 Pop and Martin Zobel-Helas.
177
178 6. teams.debian.net
179
180 # vim: tw=72
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