SMTP port being blocked on Fedora 4.

I'm trying to get the sendmail server working under Fedora 4, but the
SMTP port (tcp/25) is being blocked by something and I can't find what
is doing it.

I've turned off the iptables with no luck. And there isn't anything
in hosts.deny (or allow) .

On the local machine I can telnet to the port and get the proper smtp
greeting. So I know that is working. But trying from other machines
gets a connection refused.

I can ssh into the local machine from outside and even ping it without
the iptable rules active.

anyone have any ideas what else might be blocking the port?
I'm hoping I'm just missing something simple.

thanks

Ken Tew wrote:
> I'm trying to get the sendmail server working under Fedora 4, but the
> SMTP port (tcp/25) is being blocked by something and I can't find what
> is doing it.

The default configuration is that sendmail only listens on the loopback
address; in sendmail.mc:
dnl # The following causes sendmail to only listen on the IPv4 loopback
address
dnl # 127.0.0.1 and not on any other network devices. Remove the loopback
dnl # address restriction to accept email from the internet or intranet.
dnl #
DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl

Amend this and regenerate the sendmail.cf file.

Paul

Ken Tew wrote:
> I'm trying to get the sendmail server working under Fedora 4, but the
> SMTP port (tcp/25) is being blocked by something and I can't find what
> is doing it.
>

>
> anyone have any ideas what else might be blocking the port?
> I'm hoping I'm just missing something simple.
>

fuser -v -n tcp 25