<https://forums.hak5.org/topic/26861-sendmail-open-relay/>
<http://schema.org/text>
"Could you install a mail server such as sendmail and then use dns spoof to forward all smtp requests to your outgoing email open relay mail server. Most smtp servers require you to be assigned an ip address on the corresponding network (i.e. smtp.comcast.net for outgoing email requires you to be using comcast internet service.) Could you spoof all requests for smtp with something like smtp.*.* in dns spoof and forward those requests to your open relay configured smtp server? This would enable you to capture all emails that were being sent from anyone using smtp and not just dedicated network requests. \nI know that apple's outgoing smtp server is smtp.mail.me.com so this should effectively capture non dedicated network smtp traffic as well. Does this sound possible? Any thoughts? "
<https://forums.hak5.org/topic/26861-sendmail-open-relay/>