From 4b2a6dbf60da3caa1bec8d40886f8330dae3da40 Mon Sep 17 00:00:00 2001
From: Neal Norwitz <nnorwitz@gmail.com>
Date: Wed, 24 Oct 2007 03:52:50 +0000
Subject: [PATCH] Backport 58618: Issue 1307 by Derek Shockey, fix the same bug
 for RCPT.

---
 Lib/smtpd.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/smtpd.py b/Lib/smtpd.py
index 4aa34763ecff..e09774f2d9bd 100755
--- a/Lib/smtpd.py
+++ b/Lib/smtpd.py
@@ -237,7 +237,7 @@ class SMTPChannel(asynchat.async_chat):
         if not self.__mailfrom:
             self.push('503 Error: need MAIL command')
             return
-        address = self.__getaddr('TO:', arg)
+        address = self.__getaddr('TO:', arg) if arg else None
         if not address:
             self.push('501 Syntax: RCPT TO: <address>')
             return
-- 
2.47.3