diff --git a/Overwrite-Default-Postfix-Configuration.md b/Override-Default-Postfix-Configuration.md
similarity index 52%
rename from Overwrite-Default-Postfix-Configuration.md
rename to Override-Default-Postfix-Configuration.md
index e500878..0282786 100644
--- a/Overwrite-Default-Postfix-Configuration.md
+++ b/Override-Default-Postfix-Configuration.md
@@ -1,5 +1,12 @@
-The Postfix default configuration can easily be overwritten by providing a `config/postfix-main.cf` in postfix format.
+The Postfix default configuration can easily be extended by providing a `config/postfix-main.cf` in postfix format.
 This can also be used to add configuration that is not in our default configuration.
+
+For example, one common use of this file is for increasing the default maximum message size:
+```
+# increase maximum message size
+   message_size_limit = 52428800
+```
+
 [Postfix documentation](http://www.postfix.org/documentation.html) remains the best place to find configuration options.
 
 Each line in the provided file will be loaded into postfix.