----- Original Message ----- From: "Michael Kalus" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, June 17, 2003 12:52 PM Subject: RE: AOL Now Bouncing DHCP Addresses, Residential Addresses[May Be OT]
> > When a reverse DNS lookup happens, it compares the dns with > > the IP number. If they are not matched, the mail bounces. > > Those on Dynamic IPs will bounce on ANY decent server. > > Excuse me but that is not what should happen. What if the IP does not have a > DNS name associated with it? Then it bounces. And that is exactly what should happen. The MX record can point to a different IP number than the Port 80 IP number. But it must match. > > I do run my own mailserver, it does NOT relay and if you try it you get > dropped with an error code, I had people try to use it as a relay but even > my own ISP only probes it and then went away when they realized it was > closed. Then you have nothing to worry about. > > What AOL should do is (if they really want to prevent spam) to go out to the > mailserver that makes the connection and see if they can relay to > themselves, if they can then block it, if not let the mail go through. They use Reverse DNS Lookup just like the rest of us that run legal servers. > > No need to punish the ones who do everything right but who are at the mercy > of their ISP. If your mail is bouncing, it's does not meet the criteria for AOL and any other properly setup Email Server. > > I wouldn't mind having my own fixed IP but they are hard to come by these > days. I bought mine. -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/redhat-list
