Have you tried reaching out to the team using the contact details at 
https://senders.yahooinc.com?

Best,
Faisal

> On Jul 12, 2025, at 11:32 AM, Martin Lesser via mailop <mailop@mailop.org> 
> wrote:
> 
> Hi anyone,
> 
> again: anyone form yahoo out there?
> 
> Since weeks we have problems sending DKIM-signed newsletters to recipients 
> with accounts at yahoo / aol. Fur sure the newsletters are legal stuff with 
> double-opt-in before sending.
> 
> The yahoo-MTAs defer with "421 - ... due to unexpected volume ...". At the 
> moment there are about 6,000 newsletters to yahoo / aol stuck in the queue of 
> our MTA since about 18 hours.
> 
> Both sending IPs (144.76.24.74 and 144.76.26.252) are part of SPF-TXT-record 
> of physio.de.
> 
> # dig +short TXT physio.de
> 
> So I wonder what to do so that all interested recipients get their 
> informations they're looking for. Would be great if we could solve this 
> problem permanently so I would not have to ask for help in 2 weeks again...
> 
> Regards, Martin
> 
> _______________________________________________
> mailop mailing list
> mailop@mailop.org
> https://list.mailop.org/listinfo/mailop

_______________________________________________
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Reply via email to