I assume you've checked this site already https://senders.yahooinc.com/smtp-error-codes/
If so, you'll know that there's also a way to contact the Yahoo team directly here: https://senders.yahooinc.com/contact/ While people from Yahoo do roam this list, you should try to contact the team using the above method before escalating here. Best, Faisal > On Nov 8, 2024, at 3:45 PM, Hello Maildrop via mailop <mailop@mailop.org> > wrote: > > Hello dear list member, > > I'm David, CEO/CTO of a small France based ESP. > > For more or less a week I've been stuck delivering at Yahoo with > TSS04, no matter how much I try to pass a few messages per hour, > nothing does. > Moreover, I think I know the message that triggered this mess, but I'm not > sure. > > No problems with the other main MSPs, old and good-reputation overall > IP, but overall low volume to Yahoo. > > Could someone from Yahoo help me diagnose the situation? > > TOUREL David > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop
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