On 19.05.26 11:14, Bram Van Daele (Teneo BV) via mailop wrote:
We ran into persistent Microsoft SPF=Fail bounces that survived a complete SPF record overhaul. DKIM pass, DMARC pass, IPs covered. Seven months, 25,000+ bounces per day across seven domains. Root cause: a forgotten spf2.0/pra record. We documented the full investigation and the data. https://www.engagor.ai/resources/blog/microsoft-spf2-pra-evaluated-2026 Has anyone else run into this, i'm interested in seeing more data on this?
The only solution I see is to get immediately rid of spf2.0/pra records. Perhaps DNS checkers should recommend dropping them. -- Matus UHLAR - fantomas, [email protected] ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. I feel like I'm diagonally parked in a parallel universe. _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
