+# And Sparkpost.
+156.70.4.0/23 permit
+156.70.2.0/23 permit
+
+# Some hosts that send bounces to the wrong guy (i.e., me)
+192.241.146.138 reject please check mail server config, your server is sending bounce spam
+209.97.143.86 reject please check mail server config, your server is sending bounce spam
+209.97.132.56 reject please check mail server config, your server is sending bounce spam
+188.166.20.128 reject please check mail server config, your server is sending bounce spam
+159.203.188.91 reject please check mail server config, your server is sending bounce spam
+159.203.190.197 reject please check mail server config, your server is sending bounce spam
+159.65.138.221 reject please check mail server config, your server is sending bounce spam
+128.199.206.172 reject please check mail server config, your server is sending bounce spam
+142.93.223.22 reject please check mail server config, your server is sending bounce spam