Fix dmarcPolicy typing #126 (#165)

Author: nagelflorian

events/ses.go

@@ -34,7 +34,7 @@ type SimpleEmailReceipt struct {
 	SpamVerdict          SimpleEmailVerdict       `json:"spamVerdict"`
 	DKIMVerdict          SimpleEmailVerdict       `json:"dkimVerdict"`
 	DMARCVerdict         SimpleEmailVerdict       `json:"dmarcVerdict"`
-	DMARCPolicy          SimpleEmailVerdict       `json:"dmarcPolicy"`
+	DMARCPolicy          string                   `json:"dmarcPolicy"`
 	SPFVerdict           SimpleEmailVerdict       `json:"spfVerdict"`
 	VirusVerdict         SimpleEmailVerdict       `json:"virusVerdict"`
 	Action               SimpleEmailReceiptAction `json:"action"`

events/testdata/ses-event.json

@@ -80,9 +80,7 @@
           "dmarcVerdict": {
             "status": "PASS"
           },
-          "dmarcPolicy": {
-            "status": "REJECT"
-          },
+          "dmarcPolicy": "reject",
           "processingTimeMillis": 574,
           "action": {
             "type": "Lambda",