Practical guidance for configuring Microsoft Exchange spam filtering - covers Exchange Online Protection, on-premises options, allow/block lists, transport rules, authentication (SPF/DKIM/DMARC), and user training.
Use modern server-side filters, email authentication (SPF/DKIM/DMARC), user reporting, and clear policies to reduce spam in Microsoft Outlook and protect mailboxes from phishing and malware.
Enterprise Exchange (on-premises or Exchange Online) uses layered spam and malware filters, quarantine, archiving, DLP and monitoring to reduce spam, prevent threats, and support compliance. Admins balance filtering, mailbox lifecycle management, and legal/privacy obligations.
Microsoft's modern antispam and email security (EOP, Defender for Office 365) use layered detection - reputation, ML, sandboxing, and URL checks - to block malware and phishing. Pair these services with user habits like not opening unknown mail and enabling MFA.