diff --git a/channel.go b/channel.go
index d64394cca..7a71a40d1 100644
--- a/channel.go
+++ b/channel.go
@@ -52,6 +52,9 @@ const (
 
 	// ConfigUseNational is a constant key for channel configs
 	ConfigUseNational = "use_national"
+
+	// ConfigSendHeaders is a constant key for channel configs
+	ConfigSendHeaders = "headers"
 )
 
 // ChannelType is our typing of the two char channel types
diff --git a/handlers/external/external.go b/handlers/external/external.go
index c447228d2..62ee86876 100644
--- a/handlers/external/external.go
+++ b/handlers/external/external.go
@@ -358,6 +358,14 @@ func (h *handler) SendMsg(ctx context.Context, msg courier.Msg) (courier.MsgStat
 			req.Header.Set("Authorization", authorization)
 		}
 
+		headers := msg.Channel().ConfigForKey(courier.ConfigSendHeaders, map[string]interface{}{}).(map[string]interface{})
+
+		if len(headers) > 0 {
+			for hKey, hValue := range headers {
+				req.Header.Set(hKey, fmt.Sprint(hValue))
+			}
+		}
+
 		rr, err := utils.MakeHTTPRequest(req)
 
 		// record our status and log
diff --git a/handlers/external/external_test.go b/handlers/external/external_test.go
index 1c4b84685..8a9343c68 100644
--- a/handlers/external/external_test.go
+++ b/handlers/external/external_test.go
@@ -423,11 +423,11 @@ func TestSending(t *testing.T) {
 
 	var jsonChannel = courier.NewMockChannel("8eb23e93-5ecb-45ba-b726-3b064e0c56ab", "EX", "2020", "US",
 		map[string]interface{}{
-			"send_path":                     "",
-			courier.ConfigSendBody:          `{ "to":{{to}}, "text":{{text}}, "from":{{from}}, "quick_replies":{{quick_replies}} }`,
-			courier.ConfigContentType:       contentJSON,
-			courier.ConfigSendMethod:        http.MethodPost,
-			courier.ConfigSendAuthorization: "Token ABCDEF",
+			"send_path":               "",
+			courier.ConfigSendBody:    `{ "to":{{to}}, "text":{{text}}, "from":{{from}}, "quick_replies":{{quick_replies}} }`,
+			courier.ConfigContentType: contentJSON,
+			courier.ConfigSendMethod:  http.MethodPost,
+			courier.ConfigSendHeaders: map[string]interface{}{"Authorization": "Token ABCDEF", "foo": "bar"},
 		})
 
 	var xmlChannel = courier.NewMockChannel("8eb23e93-5ecb-45ba-b726-3b064e0c56ab", "EX", "2020", "US",
@@ -472,22 +472,22 @@ func TestSending(t *testing.T) {
 
 	var jsonChannel30IntLength = courier.NewMockChannel("8eb23e93-5ecb-45ba-b726-3b064e0c56ab", "EX", "2020", "US",
 		map[string]interface{}{
-			"send_path":                     "",
-			"max_length":                    30,
-			courier.ConfigSendBody:          `{ "to":{{to}}, "text":{{text}}, "from":{{from}}, "quick_replies":{{quick_replies}} }`,
-			courier.ConfigContentType:       contentJSON,
-			courier.ConfigSendMethod:        http.MethodPost,
-			courier.ConfigSendAuthorization: "Token ABCDEF",
+			"send_path":               "",
+			"max_length":              30,
+			courier.ConfigSendBody:    `{ "to":{{to}}, "text":{{text}}, "from":{{from}}, "quick_replies":{{quick_replies}} }`,
+			courier.ConfigContentType: contentJSON,
+			courier.ConfigSendMethod:  http.MethodPost,
+			courier.ConfigSendHeaders: map[string]interface{}{"Authorization": "Token ABCDEF", "foo": "bar"},
 		})
 
 	var xmlChannel30IntLength = courier.NewMockChannel("8eb23e93-5ecb-45ba-b726-3b064e0c56ab", "EX", "2020", "US",
 		map[string]interface{}{
-			"send_path":                     "",
-			"max_length":                    30,
-			courier.ConfigSendBody:          `<msg><to>{{to}}</to><text>{{text}}</text><from>{{from}}</from><quick_replies>{{quick_replies}}</quick_replies></msg>`,
-			courier.ConfigContentType:       contentXML,
-			courier.ConfigSendMethod:        http.MethodPost,
-			courier.ConfigSendAuthorization: "Token ABCDEF",
+			"send_path":               "",
+			"max_length":              30,
+			courier.ConfigSendBody:    `<msg><to>{{to}}</to><text>{{text}}</text><from>{{from}}</from><quick_replies>{{quick_replies}}</quick_replies></msg>`,
+			courier.ConfigContentType: contentXML,
+			courier.ConfigSendMethod:  http.MethodPost,
+			courier.ConfigSendHeaders: map[string]interface{}{"Authorization": "Token ABCDEF", "foo": "bar"},
 		})
 
 	RunChannelSendTestCases(t, getChannel30IntLength, newHandler(), longSendTestCases, nil)
@@ -503,4 +503,14 @@ func TestSending(t *testing.T) {
 
 	RunChannelSendTestCases(t, nationalChannel, newHandler(), nationalGetSendTestCases, nil)
 
+	var jsonChannelWithSendAuthorization = courier.NewMockChannel("8eb23e93-5ecb-45ba-b726-3b064e0c56ab", "EX", "2020", "US",
+		map[string]interface{}{
+			"send_path":                     "",
+			courier.ConfigSendBody:          `{ "to":{{to}}, "text":{{text}}, "from":{{from}}, "quick_replies":{{quick_replies}} }`,
+			courier.ConfigContentType:       contentJSON,
+			courier.ConfigSendMethod:        http.MethodPost,
+			courier.ConfigSendAuthorization: "Token ABCDEF",
+		})
+	RunChannelSendTestCases(t, jsonChannelWithSendAuthorization, newHandler(), jsonSendTestCases, nil)
+
 }