In article <03c069fb-bf3c-d907-6617-7f64151b3552@governanceprimer.com> you write:
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John,
I am confused. I got these statistics from a test you ran yourself in April following up on a request made by Don. From your e-mail: "Of those [domains] I found MXes for 862 of them, and 414 of the domains had mail servers that support EAI. As you can see from this summary, 85% those have mail hosted at gmail, 10% at Microsoft."
It's not measuring the same thing. I looked at the corporate inbound mail servers, but for your tests it's the outbound e-commerce or CRM mail servers that matter. Other than in the tiniest organizations, they're rarely the same. Unfortunately, there's no way to test those latter servers other than by signing up and getting them to send you something. FYI, I did that test for Don in about half an hour by tweaking my existing tools that sample TLD zone files. If it had been a lot of work I would have told him it wasn't worth the effort since it doesn't tell us very much. One thing this discussion does tell us is that the next time around it would be a good idea to have someone with mail experise on the testing team who can check the tests and reports for these kinds of issues. R's, John