0/0 is the entire internet. Take the approach of least privileges. The idea that laptop users VPN in if they want to be given a free ride (no auth) etc works, since you can place your VPN subnet into mynetworks.
Perhaps your initial posting was too ambiguous. On Thu, Feb 19, 2009 at 3:00 PM, Rich <rhd...@gmail.com> wrote: > I used the term "open relay" because I don't want to limit the by setting > "mynetworks" to a couple of networks. I was thinking by using sasl and tls > I could set mynetworks to 0/0. > > On Thu, Feb 19, 2009 at 2:42 PM, Rich <rhd...@gmail.com> wrote: >> >> I want to setup postfix so that my users who use laptops can access their >> email from anywhere and then reply to those emails through the smtp server. >> >> What kind of security should I setup? > >
