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Ask HN: Have you noticed an increase of rejections when sending to Yahoo email?

1•bloudermilk•11m ago
I'm representing a small business with a large number of customers using @yahoo.com or Yahoo!-managed (AT&T, PacBell, etc) email services. Over the past few months, we've seen an increasing number emails sent to those domains get rejected. It's getting to the point where almost no email gets through, despite the domain we send from, which includes @gmail.com and @outlook.com.

> 554 Message not allowed - [PH01] Email not accepted for policy reasons. Please visit https://senders.yahooinc.com/error-codes

Is anyone else seeing this? Are there any known remedies?

CRDTs are not enough: From CRDTs to a local-first sync engine

https://loro.dev/blog/crdt-is-not-enough
1•Matrixik•52s ago•0 comments

Expect an AI Crash

https://www.economist.com/leaders/2026/11/12/why-you-should-expect-an-ai-crash
1•toomuchtodo•1m ago•0 comments

5QL: Reflective Declarative Prompting

https://fiveql.com
1•david927•2m ago•1 comments

Edge0-145B: Frontier AI Capabilities on Your Own Computer

https://edge0.ai/blog/introducing-edge0-145b-frontier-ai-capabilities-on-your-own-computer
1•sroussey•3m ago•0 comments

Show HN: Linux Namespace Struct Map

https://claude.ai/artifact/UNSTv6tj79oAsDeRnmiCNe
1•paparazzi678•5m ago•0 comments

Astro Spiral: Greatest Car Stunt Was Also First Computer-Modeled Stunt

https://boldentrance.com/astro-spiral-the-greatest-car-stunt/
1•CharlesW•5m ago•0 comments

Show HN: ActiveDNS, a free DNS search service

https://activedns.net/
1•elnerd•5m ago•0 comments

Senders and Coroutines Together

https://train-it.eu/blog/senders-and-coroutines/
1•ibobev•6m ago•0 comments

What's New in Flutter 3.50

https://flutter.dev/blog/whats-new-in-flutter-3-50
1•gumby271•6m ago•0 comments

C64 Ultimate – 16 Colours on Every Hires Pixel (and Atari ST Pictures)

https://retrogamecoders.com/c64-ultimate-16-colours-every-pixel/
1•ibobev•7m ago•0 comments

Ask HN: Have you noticed an increase of rejections when sending to Yahoo email?

1•bloudermilk•11m ago•0 comments

"Sorted," Sorted

https://notoneoffbritishisms.com/2026/11/12/sorted-sorted/
1•jjgreen•11m ago•0 comments

Show HN: 27T Worlds to Explore on iOS

https://www.swiftwhere.com/games/unknown
1•fenderdude•13m ago•0 comments

Jensen Huang at Stanford University – January 29, 2003 [video]

https://www.youtube.com/watch?v=SAYBJKGbq0w
1•sheepdestroyer•13m ago•0 comments

JSON Schema References Considered Harmful

https://www.svix.com/blog/json-schema-external-entities/
3•atopia•14m ago•0 comments

K15 – Turn a static site into a 14 KB bootable x86-64 HTTPS OS

https://15kb.org/
1•FileSherlock•14m ago•0 comments

There Will Always Be Someone Faster, Cheaper, and Better

https://www.chrbutler.com/faster-cheaper-better
2•ohjeez•15m ago•0 comments

Scientists find deadly virus DNA hidden in 1k-year-old manuscripts

https://www.sciencedaily.com/releases/2026/11/261106174545.htm
1•amichail•16m ago•0 comments

Shopify's Generative Discovery Model

https://shopify.engineering/generative-discovery
1•gmays•19m ago•0 comments

Building Isometric Seattle

https://dylanamartin.com/2026/11/11/isometric-seattle.html
2•yakkomajuri•20m ago•0 comments

Show HN: Bugsy – AI automation which runs my company

https://skavish.github.io/bugsy-map/
2•skavish•21m ago•0 comments

Outlook Down, Microsoft Teams and Office may be impacted

https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect
5•pavo-etc•22m ago•1 comments

Show HN: Shimmer – Stream PC Games into macOS Picture in Picture

https://www.kevinbpatel.com/blog/shimmer
1•kevinbpatel•23m ago•0 comments

AI Can Help You Appeal Health Insurance Denials

https://time.com/article/2026/11/12/how-ai-can-help-you-appeal-health-insurance-denials/
2•holdenk•24m ago•1 comments

The Doorman Fallacy

https://thedoormanfallacy.com/
2•jahala•25m ago•0 comments

A short note on e-means and jevons paradox

https://kovashikawa.com/ai/e-means-k-means-worth-another-look/
4•rkovashikawa•26m ago•0 comments

We moved to Sweden for my husbands job 4y ago. Now we may lose the life we built

https://www.businessinsider.com/american-family-moved-to-sweden-for-job-not-going-well-2026-11
3•lakeviewterrace•26m ago•0 comments

Try Tabletop

https://blog.google/innovation-and-ai/models-and-research/google-labs/tabletop/
1•geoffbp•28m ago•0 comments

Outlook Down. Worldwide

https://www.msn.com/en-ph/news/other/outlook-is-down-tens-of-thousands-of-users-report-website-lo...
3•evolve2k•30m ago•0 comments

Show HN: Animate4Me – The first prompt-to-Spine 2D animation tool

https://animate4me.com/
1•AxiDev•32m ago•0 comments