notmuch & server: plumb Delivered-To and X-Original-To headers

server/src/nm.rs

@@ -196,6 +196,8 @@ pub async fn thread(
 
         let to = email_addresses(&path, &m, "to")?;
         let cc = email_addresses(&path, &m, "cc")?;
+        let delivered_to = email_addresses(&path, &m, "delivered-to")?.pop();
+        let x_original_to = email_addresses(&path, &m, "x-original-to")?.pop();
         let subject = m.headers.get_first_value("subject");
         let timestamp = m
             .headers
@@ -315,6 +317,8 @@ pub async fn thread(
             body,
             path,
             attachments,
+            delivered_to,
+            x_original_to,
         });
     }
     messages.reverse();