On 08/23/2017 07:31 PM, bind-us...@gtaylor.tnetconsulting.net wrote:
I think that it may be possible for someone to publish a PTR record in their IP space that reverse resolves to a name of one of your MX servers. There by allowing their bogus server to send email as you.
It is conceptually possible for SPF filters to do a Forward Confirmation of a Reverse DNS lookup (a.k.a. FCrDNS), but I wouldn't hold my breath for such.
-- Grant. . . . unix || die _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
