Hello Jorge,
> ...
> I have a problem because when I try to connect with telnet like this:
> "telnet localhost 25"
> ...
> but there are a gap between the first and the second message of 3, 4
> minutes, and my mail client always timeout.
> ...
This looks very much like an DNS lookup for 127.0.0.
> ...
> Quick question that I'm sure is simple.
> ...
I'm sure too.
> ...
> qmail is running, and my MTUs work fine.
> ...
Ok fine, so there is no problem with qmail in the first place.
> ...
> Unfortunately, when I and my users
> log in, the login message is "No mail."
> But that's not true.