Added Makefile
Added Makefile

* Added Makefile to save typing when building containers

huncode/dockermail,lava/dockermail,n00dl3/dockermail,runk/dockermail,htmlgraphic/Mail-Server,huncode/dockermail,lava/dockermail,Kiina/dockermail,dopry/dockermail,Kiina/dockermail,n00dl3/dockermail,runk/dockermail,dopry/dockermail,htmlgraphic/Mail-Server