diff --git a/Doc/includes/email-alternative.py b/Doc/includes/email-alternative.py
--- a/Doc/includes/email-alternative.py
+++ b/Doc/includes/email-alternative.py
@@ -42,6 +42,8 @@
 
 # Send the message via local SMTP server.
 s = smtplib.SMTP('localhost')
+# Connect to the SMTP server
+s.connect()
 # sendmail function takes 3 arguments: sender's address, recipient's address
 # and message to send - here it is sent as one string.
 s.sendmail(me, you, msg.as_string())
diff --git a/Doc/includes/email-dir.py b/Doc/includes/email-dir.py
--- a/Doc/includes/email-dir.py
+++ b/Doc/includes/email-dir.py
@@ -106,6 +106,7 @@
         fp.close()
     else:
         s = smtplib.SMTP()
+        s.connect()
         s.sendmail(opts.sender, opts.recipients, composed)
         s.quit()
 
diff --git a/Doc/includes/email-mime.py b/Doc/includes/email-mime.py
--- a/Doc/includes/email-mime.py
+++ b/Doc/includes/email-mime.py
@@ -27,5 +27,6 @@
 
 # Send the email via our own SMTP server.
 s = smtplib.SMTP()
+s.connect()
 s.sendmail(me, family, msg.as_string())
 s.quit()
diff --git a/Doc/includes/email-simple.py b/Doc/includes/email-simple.py
--- a/Doc/includes/email-simple.py
+++ b/Doc/includes/email-simple.py
@@ -20,5 +20,6 @@
 # Send the message via our own SMTP server, but don't include the
 # envelope header.
 s = smtplib.SMTP()
+s.connect()
 s.sendmail(me, [you], msg.as_string())
 s.quit()