diff --git a/python_imap_usage.md b/python_imap_usage.md
index 01f5de0..ac6b15e 100644
--- a/python_imap_usage.md
+++ b/python_imap_usage.md
@@ -1,6 +1,12 @@
-# Python IMAP usage
+# Python IMAP/SMTP usage
 
-Two examples of how to use the builtin IMAP library. 
+Two examples of how to use the builtin IMAP/SMTP libraries.
+
+These examples require other source code i've written to work. 
+
+It requires:
+ - AsyncioPath 
+ - env.py (for converting base64 encoded environment variable to a string containing a [secret] (password))
 
 ## Reading messages