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