diff --git a/Casks/postbox.rb b/Casks/postbox.rb
new file mode 100644
index 000000000..e5ec5802e
--- /dev/null
+++ b/Casks/postbox.rb
@@ -0,0 +1,7 @@
+class Postbox < Cask
+  url 'http://www.postbox-inc.com/php/download.php?a=308m'
+  homepage 'http://www.postbox-inc.com/'
+  version '3.0.8'
+  sha1 '78613f2111a6345ff1aeba63682a33888e2c256b'
+  link 'Postbox.app'
+end