Re: FFS
this is the email address that you gave to the mail or mailx program
Yes. And the email address you gave to other people was something like {ucbvax,a-few-other-hosts}!decwrl!marvin!cobb, where you chose a list of well known, well-connected systems as the starting point because other users would know how to reach at least one of those from their own host and those hosts knew how to reach your external gateway (decwrl in this example).
Biting the hand that feeds IT
