Re: Problems with mail system? [Fwd: Returned mail: User unknown]
On Thu, 7 Sep 2000, Timshel Knoll wrote:
> Oliver Schulze is an upstream maintainer of one of my prospective packages,
> and he's had problems sending mail to my @debian.org address. I believe that
> this is something to do with master's IPv6 configuration - the SMTP error
> message from master is:
>
> <<< 550 mail from ::ffff:216.250.196.10 rejected: administrative prohibition (failed to find host name from IP address)
This is just your standard lack of reverse DNS.. Part of the anti-spam
bit. The sender needs to get working reverse DNS I suppose..
Jason
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