I-mail server esetyenziswa nguAlice ukuthumela umyalezo wakhe (smtp.a.org) ithatha umyalezo kaAlice ize ijonge okubhalwe kwidilesi ukuze ibone okokuba uthunyelwa phi na lo myalezo. Emva koko I-mail server iphume iye kwi-intanethi ngejongo zokuzama ukufumana i-mail server esetyenziswa ngu-Bob. Konke oku ikwenza ngokuthetha nne sever eyi-Domain Name System (DNS), egcina ingxelo malunga nendlela ezifumaneka ngayo iintlobo ngeentlobo zekhompyutha kwi-intanethi, kuquka nee-mail servers.