On 8/16/05, David Henry <dhenry at nauticallandings dot com> wrote:
> Is there a way to rate limit the amount of connections to say port 25?
> 

No, the current ipfilter doesn't have this functionality.  PF does
allow state limiting per firewall rule, which could accomplish what
you're after.

You could probably use traffic shaper to limit SMTP to something like
1 KB/sec which would likely cause someone wanting to use your hotspot
to spam to move on to one that doesn't limit outbound SMTP.  That's
actually probably better than limiting the number of allowed SMTP
states.

-Chris