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Re: [Asrg] On assertions



>>> I thought "MX 0 ." asserted not "we send no mail" but rather "we
>>> receive no mail".
>> That's what it means now.  The various MX 0 . proposals overload it
>> to mean that you don't send any mail either.
> Is it fair to require all other protocols to publish a bogus MX
> record to Opt-out from SMTP?

...huh?  I don't see that other protocols have anything to do with
this.

> If anything, Opt-Out and email does not have a good history.  It
> would be much more fair to require that there be an MX record before
> accepting email that references the domain.

That is incompatabile with the existing spec, which means it's
incompatible with a substantial fraction of the (huge) installed base
of mailservers - ie, a great many of them depend on
fallback-to-address.

Still, if you think it's a good idea, give it a try.  It might work for
some sites.

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