diff --git a/docs/Outbound.md b/docs/Outbound.md
index 2f458b21b..67d3f2460 100644
--- a/docs/Outbound.md
+++ b/docs/Outbound.md
@@ -200,7 +200,7 @@ const contents = [
     "Some email body here",
     ""].join("\n");
 
-outbound.send_email(from, to, contents, (code, msg) => {
+const outnext = (code, msg) => {
     switch (code) {
         case DENY:  this.logerror("Sending mail failed: " + msg);
                     break;
@@ -210,7 +210,9 @@ outbound.send_email(from, to, contents, (code, msg) => {
         default:    this.logerror("Unrecognized return code from sending email: " + msg);
                     next();
     }
-})
+}
+
+outbound.send_email(from, to, contents, outnext)
 ```
 
 The callback on `send_email()` is passed `OK` if the mail is successfully queued, not when it is successfully delivered. To check delivery status, you need to hook `delivered` and `bounce`.