diff --git a/cryptomail.mdwn b/cryptomail.mdwn
index 4cbe516c26edf935b60e2e535d835f1d58e9e014..ecd03f8568e8fea469f6efa0f1fdce56e2860d86 100644
--- a/cryptomail.mdwn
+++ b/cryptomail.mdwn
@@ -12,6 +12,7 @@ A grande vantagem em relação a uma mera criptografia na partição onde ficam
 
 Pesquisa de soluções similares usando [procmail](http://www.procmail.org):
 
+  * [openpgpkey-milter](https://github.com/letoams/openpgpkey-milter).
   * [mail-gnupg-encrypt.pl](http://opensource.platon.sk/cvs/cvs.php/scripts/perl/mail-gnupg/).
   * [How to automatically PGP/MIME encrypt incoming mail via procmail](http://www.j3e.de/pgp-mime-encrypt-in-procmail.html).
   * [Encrypted system logs to gmail using logcheck/procmail/gpg](http://blog.fealdia.org/2008/06/14/encrypted-system-logs-to-gmail/).