Grrr... I
don't like these messages!!!! :( :( :(
Seconded. Is there any way to block
these things at the server?
Yes, there is. The sender is in violation of RFC2821, for HELOing with
a nonexistent domain ("rafalim" is not a valid top-level domain, so
calidad.Rafalim cannot exist).
However, few sites are willing to actually check that HELO domains
resolve. I've never quite understood why. The usual reason cited is
that it will stop legitimate mail; quite aside from the question of how
legitimate the mail can be if it comes from a mailer that doesn't know
how to speak SMTP, presumably this means that it's thought better to
allow broken software to continue appearing fine so it can stay broken
rather than expose the brokenness so it will get noticed (and
presumably fixed).
It's also coming from a host with no rDNS, which is more disputable,
but still enough for a lot of places to block.
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