gateway and smmsp

[Chuck Swiger]

steve lasiter wrote:
> I have all FreeBSD boxes running 5.4. My gateway
> server is set up as 192.168.0.1 and I have four behind
> it. My mail server is 192.168.0.2 running postfix and
> apache. I have the proper redirect in the ipnat.rules
> and the proper ipf.rules to allow in email on port 25.
> 
> I can send mail successfully from the 192.168.0.2 mail
> server but cannot receive it. When I attempt to telnet
> into the gateway on port 25 and watch with a sockstat
> -4 command a sendmail smmsp user pops up on port 25. I
> never configured the FreeBSD gateway options for any
> email handling and have all turned off in the rc.conf
> file with sendmail_enable="NO" and others.

Run "netstat -an | grep 25" on your firewall, and make sure nothing is 
listening on port 25, including inetd.

Run "tcpdump -nt port 25" on your mailserver, and see whether the firewall and 
redirection is working right.

-- 
-Chuck