Added list with Google gmail sending IPs

lists/google-gmail-sending-ips/list.json

@@ -0,0 +1,32 @@
+{
+  "list": [
+    "64.18.0.0/20",
+    "64.233.160.0/19",
+    "66.102.0.0/20",
+    "66.249.80.0/20",
+    "72.14.192.0/18",
+    "74.125.0.0/16",
+    "108.177.8.0/21",
+    "172.217.0.0/19 ",
+    "173.194.0.0/16",
+    "207.126.144.0/20",
+    "209.85.128.0/17",
+    "216.58.192.0/19",
+    "216.239.32.0/19",
+    "2001:4860:4000::/36",
+    "2404:6800:4000::/36",
+    "2607:f8b0:4000::/36",
+    "2800:3f0:4000::/36",
+    "2a00:1450:4000::/36",
+    "2c0f:fb50:4000::/36"
+  ],
+  "type": "cidr",
+  "matching_attributes": [
+    "ip-dst",
+    "ip-src",
+    "domain|ip"
+  ],
+  "name": "List of known gmail sending IP ranges",
+  "version": 20190724,
+  "description": "List of known gmail sending IP ranges (https://support.google.com/a/answer/27642?hl=en )"
+}