Dan Barker schrieb:
> I'm receiving a lot of 421 rejects with:
>
> Unexpected connection response from server:
> 421 mails from 74.254.46.133 refused: local dynamic IP address
> 74.254.46.133"
>
> Does anybody recognize the text of the message? I'd like to confirm that
> there are no popular DUL lists showing 74.254.46.133 as dynamic, but the 421
> message says very little. DNSReport says it's clean. I've tried to contact
> some postmaster accounts (using Yahoo.com, since I can't use my own mailer)
> but they appear to be RFC ignorant too. Unfortunately, it's not just one ISP
> in Germany and I'd like to understand if there's anything I can do on my
> side.
>
> The only thing that comes to mind is that my rDNS is delegated to my own
> name server. Maybe there's some sort of DNS software out in the wild that
> doesn't support delegation? I'm really at a loss.
>
> Dan
>

133.46.254.74.in-addr.arpa is an alias for 133.128.46.254.74.in-addr.arpa.
133.128.46.254.74.in-addr.arpa domain name pointer mail.visioncomm.net.

probably a not so clever blacklist considering your ip dynamic because
the alias has its own ip in the alias name

arni