[Techtalk] stopping outgoing virus mail

[Mary]

On Tue, Mar 18, 2003, Conor Daly wrote:
> o Configure the firewall to do port forwarding.
> o At the firewall, forward _any_ outgoing to port 25 to SMTP server port 25.
> o Configure tho SMTP server to send outgoing mails on port 50025.
> o At the firewall, forward outgoing from SMTP server to port 50025 to
>   internet on port 25.

I don't understand firewalling that well, but is the last step
necessary? I would have thought you could just modify the second rule so
that the SMTP server's connections to external port 25 aren't firewalled
in the first place. All other servers are firewalled, but *not* the SMTP
server.

-Mary