spamassassin: Add rule for arabic spam mails

Signed-off-by: Florian Pritz <bluewind@xinu.at>

roles/spampd/templates/local.cf.j2

@@ -247,6 +247,12 @@ score LOCAL_OFFER 0.1
 meta LOCAL_CREDIT_OFFER (LOCAL_OFFER && LOCAL_CREDIT)
 score LOCAL_CREDIT_OFFER 0.8
 
+header __LOCAL_ARABIC_STUDENT From =~ /student.*1\./
+header __LOCAL_ARABIC_STUDENT_MAILER X-Mailer =~ /^MBM 7\.9-US$/
+meta LOCAL_ARABIC_STUDENT (__LOCAL_ARABIC_STUDENT && __LOCAL_ARABIC_STUDENT_MAILER)
+score LOCAL_ARABIC_STUDENT 2
+
+
 # Attachments
 loadplugin Mail::SpamAssassin::Plugin::MIMEHeader