Test for emails with no subject lines

src/freedombone-base-email

@@ -1088,6 +1088,13 @@ function create_procmail {
         echo 'LOGFILE=$HOME/log/procmail.log' >> /home/$MY_USERNAME/.procmailrc
         echo 'LOGABSTRACT=all' >> /home/$MY_USERNAME/.procmailrc
         echo '' >> /home/$MY_USERNAME/.procmailrc
+        echo '# Test for an empty or missing subject line' >> /home/$MY_USERNAME/.procmailrc
+        echo 'SUBJ_=$(formail -xSubject: \' >> /home/$MY_USERNAME/.procmailrc
+        echo "        | expand | sed -e 's/^[ ]*//g' -e 's/[ ]*\$//g')" >> /home/$MY_USERNAME/.procmailrc
+        echo ':0' >> /home/$MY_USERNAME/.procmailrc
+        echo '  * SUBJ_ ?? ^^^^' >> /home/$MY_USERNAME/.procmailrc
+        echo '/dev/null' >> /home/$MY_USERNAME/.procmailrc
+        echo '' >> /home/$MY_USERNAME/.procmailrc
         echo $"# Tripwire reports which have no violations don't need to be logged" >> /home/$MY_USERNAME/.procmailrc
         echo ':0 BD:' >> /home/$MY_USERNAME/.procmailrc
         TRIPWIRE_VIOLATIONS_STR=$'Total violations found:  0'