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Starting May 5, 2025, all businesses - regardless of size - must meet Microsoft’s stricter email authentication requirements when sending to Outlook, Hotmail, and Live addresses. These changes are designed to reduce spoofing and impersonation, aligning with similar updates from Google and Yahoo to improve overall email security.
Read MoreTags: eMail, SPF record, Cybersecurity, email scams, cybersecurity, DMARC
This sounds like a funny question because who would ever send themself a spam email? What you really received is a "spoofed" message. It's actually easy to alter an email to change the "from" address to make it appear that it's coming from someone else. Basically a forgery. (This is one of the reasons that if you use a spam filter, you shouldn't necessarily safe list your own address.)
Tags: eMail, spam, DNS, SPF record