I have begun data collection on the effectiveness of the MX and A tests. Wildcard DNS entries increase the frequency of false positives and reduce the usability of the test. For example, "msaqq189.ford.com" returns a set of MX results, but I rather doubt that I made a lucky guess and found a mail domain that Ford Motor actually uses.
On Thu, May 6, 2021 at 6:32 PM Jeremy Harris <j...@wizmail.org> wrote: > On 05/05/2021 12:28, Douglas Foster wrote: > > Non-delivery reports are officially discouraged > > RFC 5321 Section 6.2 says the reverse. > > -- > Cheers, > Jeremy > > _______________________________________________ > dmarc mailing list > dmarc@ietf.org > https://www.ietf.org/mailman/listinfo/dmarc >
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