Hello, i'm an expert IT with more 15 years of experience in IT industry . i'm certified Cisco networking professional 300-100 and 300-115 and Linux professional lpi 101, 102 and red hat certified system administrator and VMware Certified Professional 4, 5,5.5 and Data Center and Microsoft System administrateur /Engineer ranging from 2003 to 2012 . this prince include a server dns /reverse dns with all record . step by step haw to install pop3s and imaps and SMTP with authentification and security . haw to add many domaine to this server and give for every doamine admin account