diff --git a/hyperactor/src/mailbox.rs b/hyperactor/src/mailbox.rs
index 2b31b8124..b0fd66e8d 100644
--- a/hyperactor/src/mailbox.rs
+++ b/hyperactor/src/mailbox.rs
@@ -1160,7 +1160,7 @@ impl MailboxSender for MailboxClient {
         envelope: MessageEnvelope,
         return_handle: PortHandle<Undeliverable<MessageEnvelope>>,
     ) {
-        tracing::event!(target:"messages", tracing::Level::DEBUG,  "size"=envelope.data.len(), "sender"= %envelope.sender, "dest" = %envelope.dest.0, "port"= envelope.dest.1, "message_type" = envelope.data.typename().unwrap_or("unknown"), "send_message");
+        tracing::event!(target:"messages", tracing::Level::TRACE,  "size"=envelope.data.len(), "sender"= %envelope.sender, "dest" = %envelope.dest.0, "port"= envelope.dest.1, "message_type" = envelope.data.typename().unwrap_or("unknown"), "send_message");
         if let Err(mpsc::error::SendError((envelope, return_handle))) =
             self.buffer.send((envelope, return_handle))
         {