blob: 0f156101756cf3d422f4fde1a1414a3f926d2507 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
# Composites setup
# Please don't modify this file as your changes might be overwritten with
# the next update.
#
# You can modify '$LOCAL_CONFDIR/rspamd.conf.local.override' to redefine
# parameters defined on the top level
#
# You can modify '$LOCAL_CONFDIR/rspamd.conf.local' to add
# parameters defined on the top level
#
# For specific modules or configuration you can also modify
# '$LOCAL_CONFDIR/local.d/file.conf' - to add your options or rewrite defaults
# '$LOCAL_CONFDIR/override.d/file.conf' - to override the defaults
#
# See https://rspamd.com/doc/tutorials/writing_rules.html and
# https://rspamd.com/doc/configuration/composites.html for details
composites {
FORGED_RECIPIENTS_MAILLIST {
expression = "FORGED_RECIPIENTS & -MAILLIST";
}
FORGED_SENDER_MAILLIST {
expression = "FORGED_SENDER & -MAILLIST";
}
FORGED_SENDER_FORWARDING {
expression = "FORGED_SENDER & g:forwarding";
description = "Forged sender, but message is forwarded";
policy = "remove_weight";
}
SPF_FAIL_FORWARDING {
expression = "g:forwarding & (R_SPF_SOFTFAIL | R_SPF_FAIL)";
policy = "remove_weight";
}
DMARC_POLICY_ALLOW_WITH_FAILURES {
expression = "DMARC_POLICY_ALLOW & (R_SPF_SOFTFAIL | R_SPF_FAIL | R_DKIM_REJECT)";
policy = "remove_weight";
}
FORGED_RECIPIENTS_FORWARDING {
expression = "FORGED_RECIPIENTS & g:forwarding";
policy = "remove_weight";
}
FORGED_SENDER_VERP_SRS {
expression = "FORGED_SENDER & (ENVFROM_PRVS | ENVFROM_VERP)";
}
FORGED_MUA_MAILLIST {
expression = "g:mua & -MAILLIST";
}
RBL_SPAMHAUS_XBL_ANY {
expression = "RBL_SPAMHAUS_XBL & RECEIVED_SPAMHAUS_XBL";
description = "From and Received address are listed in Spamhaus XBL";
}
AUTH_NA {
expression = "R_DKIM_NA & R_SPF_NA & DMARC_NA & ARC_NA";
score = 1.0;
policy = "remove_weight";
description = "Authenticating message via SPF/DKIM/DMARC/ARC not possible";
}
DKIM_MIXED {
expression = "-R_DKIM_ALLOW & (R_DKIM_DNSFAIL | R_DKIM_PERMFAIL | R_DKIM_REJECT)"
policy = "remove_weight";
}
MAIL_RU_MAILER_BASE64 {
expression = "MAIL_RU_MAILER & (FROM_EXCESS_BASE64 | MIME_BASE64_TEXT | REPLYTO_EXCESS_BASE64 | SUBJ_EXCESS_BASE64 | TO_EXCESS_BASE64)";
}
YANDEX_RU_MAILER_CTYPE_MIXED_BOGUS {
expression = "YANDEX_RU_MAILER & -HAS_ATTACHMENT & CTYPE_MIXED_BOGUS";
}
MAILER_1C_8_BASE64 {
expression = "MAILER_1C_8 & (FROM_EXCESS_BASE64 | MIME_BASE64_TEXT | SUBJ_EXCESS_BASE64 | TO_EXCESS_BASE64)";
description = "Message was sent by '1C:Enterprise 8' and uses base64 encoded data";
}
HACKED_WP_PHISHING {
expression = "(HAS_X_POS | HAS_PHPMAILER_SIG) & HAS_WP_URI & (PHISHING | DBL_PHISH | PHISHED_OPENPHISH | PHISHED_PHISHTANK)";
description = "Phish message sent by hacked Wordpress instance";
policy = "leave";
}
COMPROMISED_ACCT_BULK {
expression = "(HAS_XOIP | RCVD_FROM_SMTP_AUTH) & DCC_BULK";
description = "Likely to be from a compromised account";
score = 3.0;
policy = "leave";
}
UNDISC_RCPTS_BULK {
expression = "DCC_BULK & (MISSING_TO | R_UNDISC_RCPT)";
description = "Missing or undisclosed recipients with a bulk signature";
score = 3.0;
policy = "leave";
}
RCVD_UNAUTH_PBL {
expression = "RECEIVED_PBL & !RCVD_VIA_SMTP_AUTH";
description = "Relayed through ZEN PBL IP without sufficient authentication (possible indicating an open relay)";
score = 2.0;
policy = "leave";
}
RCVD_DKIM_ARC_DNSWL_MED {
expression = "(R_DKIM_ALLOW | ARC_ALLOW) & RCVD_IN_DNSWL_MED";
description = "Sufficiently DKIM/ARC signed and received from IP with medium trust at DNSWL";
score = -0.5;
policy = "leave";
}
RCVD_DKIM_ARC_DNSWL_HI {
expression = "(R_DKIM_ALLOW | ARC_ALLOW) & RCVD_IN_DNSWL_HI";
description = "Sufficiently DKIM/ARC signed and received from IP with high trust at DNSWL";
score = -1.0;
policy = "leave";
}
AUTOGEN_PHP_SPAMMY {
expression = "(HAS_X_POS | HAS_PHPMAILER_SIG | HAS_X_PHP_SCRIPT) & (SUBJECT_ENDS_QUESTION | SUBJECT_ENDS_EXCLAIM | MANY_INVISIBLE_PARTS)";
description = "Message was generated by PHP script and contains some spam indicators";
score = 1.0;
policy = "leave";
}
PHISH_EMOTION {
expression = "(PHISHING | DBL_PHISH | PHISHED_OPENPHISH | PHISHED_PHISHTANK) & (SUBJECT_ENDS_QUESTION | SUBJECT_ENDS_EXCLAIM)";
description = "Phish message with subject trying to address users emotion";
score = 1.0;
policy = "leave";
}
HAS_ANON_DOMAIN {
expression = "HAS_GUC_PROXY_URI | URIBL_RED | DBL_ABUSE_REDIR | HAS_ONION_URI";
description = "Contains one or more domains trying to disguise owner/destination";
score = 0.1;
policy = "leave";
}
BAD_REP_POLICIES {
description = "Contains valid policies but are also marked by fuzzy/bayes/surbl/rbl";
expression = "(~g-:policies) & (-g+:fuzzy | -g+:bayes | -g+:surbl | -g+:rbl)";
score = 0.1;
}
VIOLATED_DIRECT_SPF {
description = "Has no Received (or no trusted received relays) and SPF policy fails or soft fails";
expression = "(R_SPF_FAIL | R_SPF_SOFTFAIL) & (RCVD_COUNT_ZERO | RCVD_NO_TLS_LAST)";
policy = "leave";
score = 3.5;
}
IP_SCORE_FREEMAIL {
description = "Negate IP_SCORE when message comes from FreeMail";
expression = "FREEMAIL_FROM & IP_SCORE";
score = 0.0;
policy = "remove_weight";
}
.include(try=true; priority=1; duplicate=merge) "$LOCAL_CONFDIR/local.d/composites.conf"
.include(try=true; priority=10) "$LOCAL_CONFDIR/override.d/composites.conf"
}
|
