I have a working networked Linux box at home. Setting up networking on my
cable modem was no problem, however getting SMTP to work has been a total
I have the postfix daemon running, and a list of host names for which I
will allow relaying. I can confirm that port 25 is open, but when I telnet
to port 25 to test a smtp transaction, the server never responds. The
connection begins, but the header that is supposed to be transmitted by
the server never gets sent. And yes, I am connecting from one of the
I have no problem connecting to any of my other open ports (80, 21, etc..)
I have tried updating the postfix daemon, as well as the kernel and a host
of other libs that work in concert with smtp services, but to no avail.
Is there any guidance or perhaps a "How-To" out there that can explain how
to properly setup smtp services on a linux box?