Store and deploy secure OSGI configuration for OOTB AEM services
Does AEM provide a way to store and deploy secure OSGI configuration(passwords) for OOTB services?
I know about approach with com.adobe.granite.crypto.CryptoSupport (http://www.wemblog.com/2012/03/how-to-use-crypto-support-in-cq55.html), but unfortunately it doesn't work for OOTB services(e.g Day CQ Mail Service).
Currently, we just change configuration manually on production servers, but we would like to deploy it and store in the repository, and at the same time we don't want to store passwords in an open way.
Is there any way to do it or probably some best practices?
Thanks in advance!