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tjwds | on: Outlook.com is rejecting email from domains without DMARC
> Quietly Rejecting Email

> The sender gets a bounce

?

cowlevel | parent | next
"quietly" is a sign that an LLM wrote it
Aachen | parent
My first thought as well: how does one quietly reject email? Skimmed the comments and clearly it's not quietly. Saved a click...

It's quiet only if the server accepts it and then deletes it on their end without notifying the sender, but if your mail provider shreds your mail that's then also your provider's responsibility and not the sender's

kevincox | root | parent | next
Lots of big email services do quietly reject mail. They successfully accept it but then throw it away (sometimes not even in the spam folder for particularly high span scores).
Aachen | root | parent
That's their issue. Don't be a customer at such an email provider :shrug:

I had a legal dispute once where a shop didn't provide warranty on a product. They took the product in but then it was indefinitely in repair. Long story short, it ended up being helpful that I have email server logs that show every transaction, so that I could say "on date+time the email was delivered to IP address X, which was registered as the mail exchanger for your domain, and your server took the email with status code XYZ Queued <ID> For Delivery." Would have been interesting to hear what a judge has to say about it but they simply agreed to give the full purchase price back after that

Afaik that's not what Microsoft/Hotmail does though: since it rejects noncompliant setups (as well as a lot of legitimate email, unfortunately), the sender gets a delivery failure notification

dboreham | root | parent
Replying to all inbound messages with a bounce is an old idea. The theory was that legitimate senders would validate their address and get added to a white list. The scheme didn't work for the same reason captchas don't work.
Aachen | root | parent
Maybe an old idea and you can feel about it however you want, but it's still in universal use right? So it's not quiet or am I misunderstanding what you're saying?