From: Tony Finch (no email)
Date: Fri Dec 18 2009 - 12:45:14 EST
On Fri, 18 Dec 2009, Jason Bertoch wrote:
> Isn't the fundamental problem that SMTP can fall back to an implicit MX?
> None of these solutions will stop spammers from skipping MX records and
> using direct-to-host connections.
This has nothing to do with spam.
> Shouldn't we just consider dropping the implicit MX back door as opposed
> to getting creative with MX records that spammers will surely note and
> avoid anyway?
It's impossible to make that kind of incompatible change with an installed
base of billions of users. It's already impossible to eliminate the AAAA
fallback and keep the A fallback.
-- f.anthony.n.finch <> http://dotat.at/ GERMAN BIGHT HUMBER: SOUTHWEST 5 TO 7. MODERATE OR ROUGH. SQUALLY SHOWERS. MODERATE OR GOOD.