Issue 18724: Fix typo noticed by Susan Tan.
diff --git a/Doc/library/smtplib.rst b/Doc/library/smtplib.rst
index 4f3b572..e145659 100644
--- a/Doc/library/smtplib.rst
+++ b/Doc/library/smtplib.rst
@@ -79,7 +79,7 @@
 
 .. exception:: SMTPException
 
-   The base exception class for all the other excpetions provided by this
+   The base exception class for all the other exceptions provided by this
    module.