added propper formating

src/lib.rs

@@ -62,9 +62,21 @@ async fn message_handler(message: String) -> Result<()> {
         return Ok(());
     }
 
-    let message = format!("New mail from {message_sender} with subject {}:\n```\n{}\n```", message_subject.trim(), message_body.trim());
+    let message = format!(
+        "New mail from {message_sender} with subject {}:\n```\n{}\n```",
+        message_subject.trim(),
+        message_body.trim()
+    );
 
-    send_message(&message).await?;
+    let message_html = format!(
+        "New mail from {message_sender} with subject {}:\n<code>\n{}\n</code>",
+        message_subject.trim(),
+        message_body.trim()
+    );
+
+    let message_formatted = RoomMessageEventContent::text_html(message, message_html);
+
+    send_message(message_formatted).await?;
     Ok(())
 }
 
@@ -123,13 +135,11 @@ fn get_room_id() -> OwnedRoomId {
     room_id.as_ref().unwrap().clone()
 }
 
-async fn send_message(message: &str) -> Result<()> {
+async fn send_message(content: RoomMessageEventContent) -> Result<()> {
     let client = get_client();
     let room_id = get_room_id();
 
     let transaction_id = TransactionId::new();
-    let text_content = TextMessageEventContent::plain(message);
-    let content = RoomMessageEventContent::new(MessageType::Text(text_content));
     let message =
         send_message_event::v3::Request::new(room_id, transaction_id.to_owned(), &content)?;
     client.send_request(message).await?;
@@ -142,7 +152,10 @@ async fn on_start() -> Result<()> {
     create_client().await?;
     create_room_id().await?;
 
-    send_message("Started Mailing-List Matrix bridge").await?;
+    send_message(RoomMessageEventContent::new(MessageType::Text(
+        TextMessageEventContent::plain("Started Mailing-List Matrix bridge"),
+    )))
+    .await?;
 
     println!("Started Matrix Plugin");