Author: Jeremy Harris Date: To: exim-users @ exim. org Subject: Re: [exim] problem with authentication and virtual users
R. Sánchez wrote: > I still haven't resolved inside-outside port 25 problems. Why can't I
> telnet from the outside but I *can* smtp from the outside? I've
> double-checked there are no firewall rules, smtp connections are not
> using ssl or tls... Can there be some sort of ISP filtering?
Always possible. Dig up a tool called "tcptraceroute" and
try with that.
