MicrosoftMicrosoftHi, what if spf/dkim has temperror?
Microsoft has been experiencing issues for DKIM validation for years, and it appears these problems are causing even more issues now with the strengthened email ecosystem. Perhaps Microsoft should have resolved these technical challenges before introducing additional requirements. Below is a list of top email senders and their percentage of temperrors in the last 30 days from over 20k domains:
I have reported this issue to Microsoft multiple times, and in 2024 Puneeth acknowledged, "We are aware of the DNS issue and are actively working on several resolutions." Microsoft is clearly aware of the problem, but it seems they have not been able to resolve it.
freddieleeman Is there a way we can an official answer from the publishers of this article or someone from outlook.com on what are they doing with emails with temperror under this new rule?
Not that I’m aware of. Microsoft doesn’t have the best track record with these things — something breaks, the community reports it, Microsoft eventually acknowledges it, and maybe it gets fixed months or even years later.
I can totally relate to this table, i have not seen any issues with gmail/google generating temperrors. The question i still dont have answer of is if these emails will be rejected or not. Perhaps ill soon get the reports from our service to see bounce rates. But no one from MS is willing to give an answer. The outlook.com support is useless, they keep on asking for same things no matter what your issue description is.
Yes, they would be rejected, assuming they met Microsoft's bulk sender definition. It's also possible for emails that do not meet this criteria to be rejected due to the same problem, because with a strict policy of DMARC reject, SPF not passing, and DKIM returning temperror (which is not a pass result), it would not satisfy DMARC.
In the case I am describing, SPF passes with alignment, hence DMARC passes but DKIM has temperror. I understand if you are saying temperror is considered fail and hence according to new rules, even though what i mentioned in the previous line, mails will be rejected.
