On 12/16/2011 6:32 AM, Wietse Venema wrote: > Stan Hoeppner: >> On 12/15/2011 8:19 AM, /dev/rob0 wrote: >> >>> The old default of most MUAs to use port 25 was wrong, and it is now >>> coming back to haunt you. That said, you have workarounds: >>> >>> - Use a different IP address for port 25 MX and submission mail >> >> If *all* your MUAs submitting to TCP 25 are on a known internal subnet, >> such as corporate network desktops, the fix is even easier as it >> requires no MUA reconfiguration. The following assuming your Postfix >> server is Linux. > > [iptables] > > Or simply list the clients in mynetworks.
Palm to forehead... Yeah, that would obviously be the easiest solution. I guess I was caught up in the "traffic separation" concept. -- Stan