Re: Problems with mail system? [Fwd: Returned mail: User unknown]
> On Wed, Sep 06, 2000 at 09:58:49PM -0500, Branden Robinson wrote:
> > On Thu, Sep 07, 2000 at 01:08:17PM +1100, Timshel Knoll wrote:
> > > <<< 550 mail from ::ffff:18.104.22.168 rejected: administrative prohibition (failed to find host name from IP address)
> > >
> > > Is there any way to get this fixed?
> > No. The MTA at the destination host is trying to tell you that dialup
> > trash like yourself isn't welcome on *THEIR* Internet, under the reasoning
> > that they're stopping spammers by refusing connections from machines with
> > characteristics like yours (dynamically assigned IP, perhaps, or simply no
> > reverse DNS record), and that any legitimate non-spam traffic is too
> > inconvenient to deal with.
> We know your opinions on the DUL, Branden, but that's not what the error
> It says, in plain English, "failed to find host name from IP address".
It says in plain English, "administrative prohibition (failed to fine
host name from IP address)"
Perhaps it's from being too geeky myself, but Branden's explanation
(the recipient of the error message is not welcome on *THEIR* Internet
under the reasoning that they're ... refusing connections from machines
with characteristics like [his] (...simply no reverse DNS record))
sounds like a fairly direct and accurate translation of "admisitrative
prohibition (failed to find host name from IP address)".
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