On Sat, Oct 25, 2003 at 07:37:01AM -0400, Christopher X. Candreva wrote: > On Sat, 25 Oct 2003, Adam Selene wrote: > > > > > And how do you identify your dial-up customers when they aren't dialed > > up? i.e. on their company network or other connection. > > > That's when you use SMTP AUTH. > > It's really no trick to allow relay without auth for your own IP's, and > require AUTH for all others. I've been doing it with sendmail for going on 3 > years.
We do the same thing here with qmail. Like you say, it's not that big of a trick. mm