Milter-greylist

Instead of using multiple packages to get these headers (milter-greylist, SPF milter, opendkim), it would be nice since milter-greylist handles both spf and dkim for it to be able to add the RFC5451 Authentication-Results headers for both. 

http://tools.ietf.org/html/rfc5451

I realize, one can add a header via the racl and dacl, but, that's one. There needs to be 2 headers, and, there are no format strings for results of those checks.

A valid header for dkim might look like this:

Authentication-Results: 	mail.yourhost.com; dkim=pass (1024-bit key) header.i=@...; dkim-adsp=pass

I realize you may not check adsp, so, that portion could be left off. 

I am wanting headers for both SPF results and DKIM results. 

Wouldn't that be useful? Ranking/rating programs can then use those standard headers.