Alt take: Using a Microsoft-hosted email service is a big mistake in 2026...

bigstrat2003 6 hours ago | parent [-]

That may be so, but you can't control what mail service your recipients use. So whether or not it's a bad idea, it can be your problem. That said I don't agree with OP that self-hosting mail is a bad idea.

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nekusar 4 hours ago | parent [-]

Yes you can.

User signs up, uses @outlook. Your app declines it and explains that they block with no way to remedy, and explain they are a bad vendor.

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Scharkenberg 4 hours ago | parent [-]

Deeply unserious take.

	▲	nekusar 2 hours ago \| parent [-]
		As unserious as you claim, we had this exact problem. Emails would be accepted by Outlook.com, but would never deliver. We had SPF/DKIM/DMARC and full reporting. They RBL'ed us with no remedy. We told the customer to not use outlook.com BECAUSE we told them we could not guarantee any delivery of messages.