diff --git a/services/mailer/incoming/incoming.go b/services/mailer/incoming/incoming.go
index 249dac66cd..092f738cd9 100644
--- a/services/mailer/incoming/incoming.go
+++ b/services/mailer/incoming/incoming.go
@@ -297,6 +297,10 @@ func isAutomaticReply(env *enmime.Envelope) bool {
 	if autoReply == "yes" {
 		return true
 	}
+	precedence := env.GetHeader("Precedence")
+	if precedence == "auto_reply" {
+		return true
+	}
 	autoRespond := env.GetHeader("X-Autorespond")
 	return autoRespond != ""
 }
diff --git a/services/mailer/incoming/incoming_test.go b/services/mailer/incoming/incoming_test.go
index 6101bc7e32..fe11c9e5c6 100644
--- a/services/mailer/incoming/incoming_test.go
+++ b/services/mailer/incoming/incoming_test.go
@@ -65,6 +65,12 @@ func TestIsAutomaticReply(t *testing.T) {
 			},
 			Expected: true,
 		},
+		{
+			Headers: map[string]string{
+				"Precedence": "auto_reply",
+			},
+			Expected: true,
+		},
 	}
 
 	for _, c := range cases {