In the Microsoft 365 Defender portal at, go to Email & Collaboration > Policies & Rules > Threat policies > Anti-spam in the Policies section. Use the Microsoft 365 Defender portal to create anti-spam policies For instructions, see Report good email to Microsoft. If you disagree with the verdict from anti-spam filtering, you can report the message to Microsoft as a false positive. For more information, see Configure the delivery of third-party phishing simulations to users and unfiltered messages to SecOps mailboxes. If you need to bypass spam filtering for SecOps mailboxes or phishing simulations, don't use mail flow rules.Other features in EOP aren't affected (for example, messages are always scanned for malware). High confidence phishing messages are still filtered.For more information, see Use mail flow rules to set the spam confidence level (SCL) in messages. You can't completely turn off spam filtering, but you can use Exchange mail flow rules (also known as transport rules) to bypass most spam filtering on incoming messages (for example, if you route email through a third-party protection service or device before delivery to Microsoft 365). Azure AD RBAC: Membership in the Global Administrator, Security Administrator, Global Reader, or Security Reader roles gives users the required permissions and permissions for other features in Microsoft 365.įor our recommended settings for anti-spam policies, see EOP anti-spam policy settings.Read-only access to policies: Membership in the Global Reader, Security Reader, or View-Only Organization Management role groups.Add, modify, and delete policies: Membership in the Organization Management or Security Administrator role groups.You need to be assigned permissions before you can do the procedures in this article. To connect to standalone EOP PowerShell, see Connect to Exchange Online Protection PowerShell. To connect to Exchange Online PowerShell, see Connect to Exchange Online PowerShell. To go directly to the Anti-spam policies page, use. You open the Microsoft 365 Defender portal at. What do you need to know before you begin? You can configure anti-spam policies in the Microsoft 365 Defender portal or in PowerShell (Exchange Online PowerShell for Microsoft 365 organizations with mailboxes in Exchange Online standalone EOP PowerShell for organizations without Exchange Online mailboxes). For greater granularity, you can also create custom anti-spam policies that apply to specific users, groups, or domains in your organization. The default anti-spam policy automatically applies to all recipients. For more information, see Anti-spam protection. EOP uses anti-spam policies (also known as spam filter policies or content filter policies) as part of your organization's overall defense against spam. In Microsoft 365 organizations with mailboxes in Exchange Online or standalone Exchange Online Protection (EOP) organizations without Exchange Online mailboxes, inbound email messages are automatically protected against spam by EOP. Learn about who can sign up and trial terms here. Did you know you can try the features in Microsoft 365 Defender for Office 365 Plan 2 for free? Use the 90-day Defender for Office 365 trial at the Microsoft 365 Defender portal trials hub.
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