Written by #xxaxxelxxOctober 26, 2016February 8, 2017 SMTP | ask a server he is serving a domain echo "VRFY $DOMAIN\nquit" | nc SMTP.MYSERVER.TLD 25 Share this:TwitterFacebookLike this:Like Loading... Related Leave a Reply Cancel reply Enter your comment here... Please log in using one of these methods to post your comment: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account. ( Log Out / Change ) You are commenting using your Twitter account. ( Log Out / Change ) You are commenting using your Facebook account. ( Log Out / Change ) Cancel Connecting to %s Notify me of new comments via email. Notify me of new posts via email. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.