Patch #957003: Implement smtplib.LMTP.
diff --git a/Doc/lib/libsmtplib.tex b/Doc/lib/libsmtplib.tex
index e0567e6..f7b8098 100644
--- a/Doc/lib/libsmtplib.tex
+++ b/Doc/lib/libsmtplib.tex
@@ -41,6 +41,23 @@
certificate chain file for the SSL connection.
\end{classdesc}
+\begin{classdesc}{LMTP}{\optional{host\optional{, port\optional{,
+ local_hostname}}}}
+
+The LMTP protocol, which is very similar to ESMTP, is heavily based
+on the standard SMTP client. It's common to use Unix sockets for LMTP,
+so our connect() method must support that as well as a regular
+host:port server. To specify a Unix socket, you must use an absolute
+path for \var{host}, starting with a '/'.
+
+Authentication is supported, using the regular SMTP mechanism. When
+using a Unix socket, LMTP generally don't support or require any
+authentication, but your mileage might vary.
+
+\versionadded{2.6}
+
+\end{classdesc}
+
A nice selection of exceptions is defined as well:
\begin{excdesc}{SMTPException}