1 files changed, 5 insertions, 1 deletions

diff --git a/Mailman/pythonlib/smtplib.py b/Mailman/pythonlib/smtplib.py
index 4f6a00d3b..0ac6018e9 100755
--- a/Mailman/pythonlib/smtplib.py
+++ b/Mailman/pythonlib/smtplib.py
@@ -231,7 +231,11 @@ class SMTP:
         if not port: port = SMTP_PORT
         self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
         if self.debuglevel > 0: print 'connect:', (host, port)
-        self.sock.connect((host, port))
+        try:
+            self.sock.connect((host, port))
+        except socket.error:
+            self.close()
+            raise
         (code,msg)=self.getreply()
         if self.debuglevel >0 : print "connect:", msg
         return (code,msg)