On Fri, Dec 21, 2001 at 03:59:33PM +1100, Roger Buck wrote:
>
> When scanning postfix bounce messages, I noticed this message:
>
> " In: 501 bogus mail from"

Stupid Windows toy mail servers.

> Checking the local log (see below), the host mail.redrocket.com appears
> to have not accepted a bounce message in response to a "relocated"
> domain entry.

redrocket.com is broken.

> If my interpretation (regarding source of this being relocated) is
> correct, then is there anything I should do to improve my error message
> handling on local postfix to avoid the 501 from redrocket.com...?

Yes, refuse mail from them. See http://www.rfc-ignorant.org/policy-dsn.html

> Does the following log suggest that our current local postfix
> configuration may need to be modified?

No. It means they will refuse bounces from everyone. They're idiots
and should read RFC2505 about why refusing mail from <> is wrong and
a disservice to their customers.

You may want to explain to their customers why they are being ripped
off: suggest they mail "no-such-user-hereaol.com" and wait for the
bounce: redrocket.com will refuse that, too. Now explain "You can guess
when your mail was delivered and when it was not. Perhaps follow up
each mail with a phone call to ensure it was delivered, since your
provider is forbidding you from receiving that information."

I'll Nominate that mail server for dsn.rfc-ignorant.org so those who
choose to not deal with idiots can refuse mail.

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