>BTW, did you know the smtp protocol works without DNS? // I did but assume no-one uses that as it's not practical because most IP addresses serve more than on

>BTW, did you know the smtp protocol works without DNS? // I did but assume no-one uses that as it's not practical because most IP addresses serve more than one domain? Or does SMTP handle that, like some extra "really-to:" header to encode the user@domain if you use IPvX for delivery?