2 files changed, 27 insertions, 2 deletions

diff --git a/src/mailman/mta/connection.py b/src/mailman/mta/connection.py
index 5c9ba7474..922c492e9 100644
--- a/src/mailman/mta/connection.py
+++ b/src/mailman/mta/connection.py
@@ -53,7 +53,7 @@ class Connection:
         """
         self._host = host
         self._port = port
-        self._connections_per_session = sessions_per_connection
+        self._sessions_per_connection = sessions_per_connection
         self._connection = None
 
     def _connect(self):
diff --git a/src/mailman/mta/docs/connection.txt b/src/mailman/mta/docs/connection.txt
index d00df0579..d57e301d6 100644
--- a/src/mailman/mta/docs/connection.txt
+++ b/src/mailman/mta/docs/connection.txt
@@ -13,8 +13,33 @@ is created, as is the host and port number of the SMTP server.
 
     >>> connection = Connection(
     ...     config.mta.smtp_host, int(config.mta.smtp_port), 1)
-    
+
 At the start, there have been no connections to the server.
 
     >>> smtpd.get_session_count()
     0
+
+By sending a message to the server, a session is started.
+
+    >>> connection.sendmail('anne@example.com', ['bart@example.com'], """\
+    ... From: anne@example.com
+    ... To: bart@example.com
+    ... Subject: aardvarks
+    ...
+    ... """)
+    {}
+
+    >>> smtpd.get_session_count()
+    1
+
+We can reset the session count back to zero.
+
+    >>> from smtplib import SMTP
+    >>> def reset():
+    ...     smtpd = SMTP()
+    ...     smtpd.connect(config.mta.smtp_host, int(config.mta.smtp_port))
+    ...     smtpd.docmd('RSET')
+
+    >>> reset()
+    >>> smtpd.get_session_count()
+    0