dk-milter consists of two parts: A milter-based application (dk-filter) which plugs in to Sendmail to provide DomainKeys service, and a library (libdk) which can be used to build DomainKeys-compliant applications or MTAs. See the home page for details.
This is great. My son loves it. Thank you for your work guys!
I am not able to see the video of these tutorials. If I could it is really a good job