Add received:from:ipv4/ipv6/fqdn to inet:email:message

synapse/models/inet.py

@@ -1560,6 +1560,15 @@ def getModelDefs(self):
                         ('headers', ('array', {'type': 'inet:email:header'}), {
                             'doc': 'An array of email headers from the message.'}),
 
+                        ('received:from:ipv4', ('inet:ipv4', {}), {
+                            'doc': 'The sending SMTP server IPv4, potentially from the Received: header.'}),
+
+                        ('received:from:ipv6', ('inet:ipv6', {}), {
+                            'doc': 'The sending SMTP server IPv6, potentially from the Received: header.'}),
+
+                        ('received:from:fqdn', ('inet:fqdn', {}), {
+                            'doc': 'The sending server FQDN, potentially from the Received: header.'}),
+
                     )),
 
                     ('inet:email:header', {}, (

synapse/tests/test_model_inet.py

@@ -2662,6 +2662,9 @@ async def test_model_inet_email_message(self):
                 :headers=(('to', 'Visi Stark <visi@vertex.link>'),)
                 :cc=(baz@faz.org, foo@bar.com, baz@faz.org)
                 :bytes="*"
+                :received:from:ipv4=1.2.3.4
+                :received:from:ipv6="::1"
+                :received:from:fqdn=smtp.vertex.link
             ]
 
             {[( inet:email:message:link=($node, https://www.vertex.link) :text=Vertex )]}
@@ -2671,6 +2674,9 @@ async def test_model_inet_email_message(self):
             self.len(1, nodes)
 
             self.eq(nodes[0].get('cc'), ('baz@faz.org', 'foo@bar.com'))
+            self.eq(nodes[0].get('received:from:ipv6'), '::1')
+            self.eq(nodes[0].get('received:from:ipv4'), 0x01020304)
+            self.eq(nodes[0].get('received:from:fqdn'), 'smtp.vertex.link')
 
             self.len(1, await core.nodes('inet:email:message:to=woot@woot.com'))
             self.len(1, await core.nodes('inet:email:message:date=2015'))