Date: Thu, 19 Aug 2010 09:23:34 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Jeff Laine <wtf.jlaine@gmail.com> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: freebsd.org maillist mx discard policy Message-ID: <4C6CEA06.9020200@infracaninophile.co.uk> In-Reply-To: <4C6CD53B.3070304@gmail.com> References: <4C6CD53B.3070304@gmail.com>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigB70E3DB79C25F390495875DC Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 19/08/2010 07:54, Jeff Laine wrote: > So, the question is: do the freebsd.org maillist servers follow SPF > records or PTR record is mandatory? >=20 The PTR is mandatory. The vast majority of SMTP senders without proper PTR records are zombie machines spreading spam. Anyone running a real mail system should be capable of arranging for a correct PTR in the DNS -- if they aren't then they have no business at the controls of a MTA. As far as I know, the FreeBSD.org mailers don't pay much attention to SPF -- generally the accepted practice seems to be to use SPF as part of computing Spam scores, but not to make accept/reject decisions solely based on SPF. Cheers, Matthew --=20 Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate JID: matthew@infracaninophile.co.uk Kent, CT11 9PW --------------enigB70E3DB79C25F390495875DC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkxs6g0ACgkQ8Mjk52CukIw7YQCeJK2vJqRJQh0V5W+ugTU99oDm BMYAoJJ/tEl4nIbLeKzXULX07JMeVxV+ =b6nX -----END PGP SIGNATURE----- --------------enigB70E3DB79C25F390495875DC--
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