On Fri, 11 Dec 2015, Jim Garrison wrote: > 300 is not a standard code. The real error code was 554 (earlier in the > message). I don't know about other MTAs but in Postfix when you configure > reject reasons you can put any text in the message at that point. The > '300' is probably meaningful only to whoever set up the server.
Jim, I suspected that. But, it's the recipient's address rather than the sender's address that's rejected and I know they're still at those domains. More investigation to follow. Thanks, Rich _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug