diff --git a/README.md b/README.md
index 9f20c4457..008907baf 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,8 @@ letsencrypt-postfix/PostfixConfigGenerator.py examples/starttls-everywhere.json
 ```
 
 This will:
-* Install the cert in Postfix
+* Ensure your mail server initiates STARTTLS encryption
+* Install the Let's Encrypt cert in Postfix
 * Enforce mandatory TLS to some major email domains
 * Enforce minimum TLS versions to some major email domains