diff --git a/bridge/api/api.go b/bridge/api/api.go
--- a/bridge/api/api.go
+++ b/bridge/api/api.go
@@ -40,6 +40,7 @@
 	e.HidePort = true
 
 	b.mrouter = melody.New()
+	b.mrouter.Config.MaxMessageSize = 64 * 1024
 	b.mrouter.HandleMessage(func(s *melody.Session, msg []byte) {
 		message := config.Message{}
 		err := json.Unmarshal(msg, &message)

diff --git a/bridge/matrix/matrix.go b/bridge/matrix/matrix.go
--- a/bridge/matrix/matrix.go
+++ b/bridge/matrix/matrix.go
@@ -363,7 +363,14 @@
 		)
 
 		err = b.retry(func() error {
-			resp, err = b.mc.SendText(channel, body)
+			content := map[string]interface{}{
+				"msgtype": "m.text",
+				"body":    body,
+			}
+			if msg.Protocol == "api" {
+				content["com.beeper.linkpreviews"] = []interface{}{}
+			}
+			resp, err = b.mc.SendMessageEvent(channel, "m.room.message", content)
 
 			return err
 		})
@@ -381,7 +388,16 @@
 	)
 
 	err = b.retry(func() error {
-		resp, err = b.mc.SendFormattedText(channel, body, formattedBody)
+		content := map[string]interface{}{
+			"msgtype":        "m.text",
+			"body":           body,
+			"format":         "org.matrix.custom.html",
+			"formatted_body": formattedBody,
+		}
+		if msg.Protocol == "api" {
+			content["com.beeper.linkpreviews"] = []interface{}{}
+		}
+		resp, err = b.mc.SendMessageEvent(channel, "m.room.message", content)
 
 		return err
 	})