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Suspicious emails not blocked
Usually Exchange Online spam filter is quite good on filtering spam and emails with malicious links. But one user has received fake "Mail Validation" email with Office 365 logo and links going into s...
Every email had the same IP address of a sending device, some Windows box with default computer name (DESKTOP-blabla). I've been advised to create a mail flow rule to block emails from this IP and so far the user is not receiving them.
I know. I had to fight spammers using AWS with dynamic IPs when still using hosted Exchange. And a few months back have reported same spammer to MailChimp 3 times i think. Anyway, is there some form to report phishing in Office 365 admin center, Security & Compliance center?
You can report it directly from within Outlook/OWA.