The subdomain[dot]onmicrosoftp[dot]com domain seems to be almost 99% spammers riding on Microsoft's reputation. I've given up on any real email from those subdomains, and just block it completely.
Reputable companies using Microsoft cloud mail usually have their own registered domains as return addresses.
On Thu, 7 Mar 2024, Nicholas Warren wrote:
Is there a registry we can search to find the company behind a certain $domain [dot]onmicrosoft[dot] com domain?
