Hi, Tom

Thank you so much for reaching out and for providing an email address to get in touch with the sender score operators. I'll email them right away!

-- Kirill

• Tom Bartel via mailop [2023-10-08 18:33]:
Kirill,

I'm with Validity.  I can tell you we are intent on producing quality scores and if there is erroneous data feeding the model we are happy to take a look at it.  In the case of "bad" input, we'd look at issuing corrective measures. You can open a ticket at datahelp at validity dot com if you'd like to pursue any further.

Thanks,

Tom

On Sun, Oct 8, 2023 at 10:02 AM Kirill Miazine via mailop <[email protected] <mailto:[email protected]>> wrote:


    • Marco M. via mailop [2023-10-08 14:26]:
     > Am 08.10.2023 um 13:59:10 Uhr schrieb Kirill Miazine:
     >
     >> Actually the error message "Relay access denied" indicates that
     >> domain is not configured at Fastmail anymore. I just tried and
     >> non-existent users give a different error message:
     >
     > Everybody can set an MX to them, so they must reject that as a
     > permanent error. The current way make it look like somebody is trying
     > unauthorized relaying many times.

    I see that current setup might be useful in case some user changes MX
    before the domain is activated at Fastmail, in which case giving 4xx
    could make sense. But it is not right to report such re-tries to sender
    score as attempts to deliver to non-existing users.

    I hope Rob & Bron & Co are able to make it right... Now I wonder what
    happens with the "sender score" of my mail server, which I've been
    operating since early 2000s with tender, love and care.

    I find it very unfair that some third party is given an authority to
    assign my server some "sender score" based on such false reports. Am I
    even able to appeal the score assignment somehow?

     >> 550 5.1.1 <does-not-exist@...>: Recipient address rejected: User
     >> unknown in virtual mailbox table
     >
     > That is the right way to deal with that.
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