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-rw-r--r--conf/composites.conf9
-rw-r--r--conf/modules.d/multimap.conf20
2 files changed, 28 insertions, 1 deletions
diff --git a/conf/composites.conf b/conf/composites.conf
index c1b603e51..b1bff1c1a 100644
--- a/conf/composites.conf
+++ b/conf/composites.conf
@@ -165,12 +165,19 @@ composites {
group = "scams";
}
FREEMAIL_AFF {
- expression = "(FREEMAIL_FROM | FREEMAIL_ENVFROM | FREEMAIL_REPLYTO) & (TO_DN_RECIPIENTS | R_UNDISC_RCPT) & (INTRODUCTION | FROM_NAME_HAS_TITLE | FREEMAIL_REPLYTO_NEQ_FROM_DOM | SUBJECT_HAS_CURRENCY)";
+ expression = "(FREEMAIL_FROM | FREEMAIL_ENVFROM | FREEMAIL_REPLYTO | FREEMAIL_MDN) & (TO_DN_RECIPIENTS | R_UNDISC_RCPT) & (INTRODUCTION | FROM_NAME_HAS_TITLE | FREEMAIL_REPLYTO_NEQ_FROM_DOM | SUBJECT_HAS_CURRENCY)";
score = 4.0;
policy = "leave";
description = "Message exhibits strong characteristics of advance fee fraud (AFF a/k/a '419' spam) involving freemail addresses";
group = "scams";
}
+ SUSPICIOUS_MDN {
+ expression = "(FREEMAIL_MDN | DISPOSABLE_MDN) & !(FREEMAIL_FROM | FREEMAIL_ENVFROM)";
+ score = 2.0;
+ policy = "leave";
+ description = "Message delivery notification should go to freemail or disposable e-mail, but message was not sent from a freemail address";
+ group = "scams";
+ }
REDIRECTOR_URL_ONLY {
expression = "HFILTER_URL_ONLY & REDIRECTOR_URL";
score = 1.0;
diff --git a/conf/modules.d/multimap.conf b/conf/modules.d/multimap.conf
index b707ddfb1..0b43b6ca9 100644
--- a/conf/modules.d/multimap.conf
+++ b/conf/modules.d/multimap.conf
@@ -85,6 +85,16 @@ multimap {
score = 0.0;
}
+ freemail_mdn {
+ type = "header";
+ header = "Disposition-Notification-To";
+ filter = "email:domain";
+ map = "https://maps.rspamd.com/freemail/free.txt.zst";
+ symbol = "FREEMAIL_MDN";
+ description = "Disposition-Notification-To is a Freemail address";
+ score = 0.0;
+ }
+
# Disposable Addresses
disposable_envfrom {
type = "from";
@@ -147,6 +157,16 @@ multimap {
score = 0.0;
}
+ disposable_mdn {
+ type = "header";
+ header = "Disposition-Notification-To";
+ filter = "email:domain";
+ map = "https://maps.rspamd.com/freemail/disposable.txt.zst";
+ symbol = "DISPOSABLE_MDN";
+ description = "Disposition-Notification-To is a disposable e-mail address";
+ score = 0.5;
+ }
+
.include(try=true,priority=5) "${DBDIR}/dynamic/multimap.conf"
.include(try=true,priority=1,duplicate=merge) "$LOCAL_CONFDIR/local.d/multimap.conf"
.include(try=true,priority=10) "$LOCAL_CONFDIR/override.d/multimap.conf"