Re: Unusual spam recently - hummm - postprocess
Quoting Michael Stone (mstone@debian.org):
> There's a line between advocacy and zealotry.
Still stuck in name-calling mode? Pity.
> It's fine for a home user to implement it quickly but it's not so easy
> for a lot of large organizations that currently allow people to send
> mail from offsite locations.
Are there any remaining MUAs that can't support SASL? Can't think of
any, offhand, but perhaps there are some.
In any event, nobody says you as an MTA admin ought to /dev/null mail
whose sending MX cannot be verified. Your local policy might be to
merely subject those to more-careful checks, for example.
> The problem is even bigger when you consider that a lot of places are
> blocking outbound smtp except through their own relays--which makes
> the "just implement smtp auth" argument a bit harder to swallow.
http://spf.pobox.com/srs.html
http://www.linuxjournal.com/article.php?sid=7328
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