Exchange Online anti-spam and anti-phishing

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Exchange Online anti-spam and anti-phishing

The layered defences Exchange Online uses against spam, malware, and phishing — and how to tune them.

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What is Exchange Online Protection?

The spam, malware, and phishing filtering included with every Exchange Online mailbox: connection filtering, anti-spam policies with spam confidence levels, anti-malware policies, anti-phishing with spoof intelligence,…

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Should I use Microsoft's preset security policies?

Yes for most tenants. The Standard and Strict preset policies apply Microsoft's recommended anti-spam, anti-malware, and anti-phishing settings and update as recommendations change; they beat hand-built policies that dr…

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How do I stop spoofed emails from my own domain?

Publish SPF, DKIM, and a DMARC policy of quarantine or reject; enable spoof intelligence and anti-phishing impersonation protection; and check the spoof intelligence insight for legitimate senders (marketing platforms)…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/exchange-online-anti-spam-and-anti-phishing

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