diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
-# Postfix-hostname-to-reverse-DNS
+# Postfix hostname to reverse DNS
 
-A short bash script that the myhostname parameter in the postfix config file.
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+A short bash script that gets the reverse DNS record for the current ip and sets it as the `myhostname` parameter in the postfix config file.
+Quite hacky, so beware…
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