Yes. I have been running a private motorsports community mailing list in the SF Bay Area for ~20 years and the only ISP that consistently does this is anything Yahoo touches. And there’s not much you can do about it, other than continue to follow deliverability best practices.
Fortunately, most of the time the email is merely deferred semi-briefly.
But it is a gigantic PITA.
- Mark
mark@pdc-racing.net | 408-348-2878
On May 12, 2021, at 8:53 AM, Apollinaris Schöll <aschoell@gmail.com> wrote:
It’s not you. I am managing a neighborhood list too and yahoo flags them for many users as spam. And few times yahoo bounced messages for a day for at least 50% of subscribers. ATT has been even worse. Full bounce of all emails for a week at a time. No problems with any other provider
On May 12, 2021, at 8:00 AM, chris--- via Mailman-users <mailman-users@mailman3.org> wrote:
That's the trouble ... I'm certain SPF and DKIM are correct. I've ran them thru the checker, and all appears to pass properly. So I'm really at a loss.
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