dit document beschrijft hoe je kunt nagaan of een emailadres bestaat
dig <domain> mx
telnet <smtp-server> 25
HELO <EenMaildomain>
mail from:<ikke@dingdo.ng>
rcpt to:<gij@louslab.be>
QUIT
Note: Op sommige servers kan je ook het commando vrfy
gebruiken
telnet mx.backup.mailprotect.be 25 Trying 178.208.39.140... Connected to mx.backup.mailprotect.be. Escape character is '^]'. 220 mx.mailprotect.be ESMTP Postfix - Speech is not free when it comes postage due! HELO google.com 250 mx.mailprotect.be MAIL FROM:<ikke@gmail.com> 250 2.1.0 Ok RCPT TO:<koen@louscorner.be> 250 2.1.5 Ok
telnet mail.hackme.org 25 Trying 185.182.56.86... Connected to mail.hackme.org. Escape character is '^]'. 220 vserver201.axc.nl ESMTP Exim 4.94.2 Fri, 14 Jan 2022 15:25:19 +0100 mail from:<ego@gmail.com> 250 OK rcpt to:<noreply@hackme.org> 550 No such recipient here 421 vserver201.axc.nl: SMTP command timeout - closing connection Connection closed by foreign host.