Cybersecurity

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Microsoft to Block Emails With 550 5.7.15 Access denied Error (cybersecuritynews.com)

submitted 1 month ago by [email protected] to c/[email protected]

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[–] [email protected] 9 points 1 month ago (1 children)

So .. this article published today, 5 May 2025, says that the Microsoft policy will start on 5 May 2025.

Some questions:

When did Microsoft announce this and where?
Is this a reasonable rollout timeline that affects pretty much anyone on the planet who does email?
As a society we run most of our activities through Google and Microsoft. At what point does this get classified as a utility and get regulated.

[–] [email protected] 8 points 1 month ago

This isn't Microsoft's announcement. They announced over a month ago. This also only affects bulk senders sending over 5,000 emails a day inbound to their Hotmail/Outlook.com service.

And if you can't send DMARC-compliant emails in 2025, frankly you deserve to be blocked.