Re: Re: PTR lookups in SPF2004-07-20 07:25:39On Mon, 19 Jul 2004 05:32:19 -0700 (PDT), william(at)elan.net wrote what about sendmail, qmail, exim?Sendmail has been doing it for years. I think exim does as well. Yes, though I believe (like most things) it's configurable. I don't think it rejects mail by default if they don't match, but that, too, is configurable.
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