> Inconvenient for you, perhaps, but I don't agree that it's stupid. It's a > great way to weed out spam from spoofed invalid IPs.
It weeds out nothing, it is rejecting it because of what is in the DNS records, and that is fundmentally wrong. The address I connected from, 65.75.216.6 to his server IS in DNS and is VALID. The server has wrongly rejected valid email and again, this well do 0 to stop any spam, so that is a red herring. This is a design defect in what ever mail server he is running. Now if I had connected to him from an actual RFC1918 address, sure that could be validly rejected, but the packet should of never got there, other than no one follows BCP's and filters src rfc1918 address except a very few of us. > > -wes > > On Thu, Oct 24, 2019 at 12:05 PM Rodney W. Grimes <[email protected]> > wrote: > > > While group replying to another PLUG message I got this bounce > > message back. > > > > Excuse me, but why should any SMTP server care that it has no > > route to my RFC1918 pre-natted address as recorded in headers? > > > > That is stupidity to its maximus. > > > > I know I am leaking a rfc1918 address in my dns, but that should > > not cause any smtp server to reject my mial, as I also am advertising > > a valid address: > > > > host gndrsh.dnsmgr.net > > gndrsh.dnsmgr.net has address 192.168.114.38 > > gndrsh.dnsmgr.net has address 65.75.216.6 > > gndrsh.dnsmgr.net mail is handled by 10 gndrsh.dnsmgr.net. > > > > ----- The following addresses had permanent fatal errors ----- > > <[email protected]> > > (reason: 550 5.7.1 <[email protected]>: Sender address > > rejected: No route to your RFC 1918 network.) > > > > ----- Transcript of session follows ----- > > ... while talking to mail.appl-ecosys.com.: > > >>> DATA > > <<< 550 5.7.1 <[email protected]>: Sender address rejected: No > > route to your RFC 1918 network. > > 550 5.1.1 <[email protected]>... User unknown > > <<< 554 5.5.1 Error: no valid recipients > > > > -- > > Rod Grimes > > [email protected] > > _______________________________________________ > > PLUG mailing list > > [email protected] > > http://lists.pdxlinux.org/mailman/listinfo/plug > > > _______________________________________________ > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug > -- Rod Grimes [email protected] _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
