Currently, this option requires membership in the Microsoft 365 Defender Preview program. Microsoft 365 Defender role based access control (RBAC): configuration/security (manage) or configuration/security (read).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.įor domains and email addresses, the maximum number of allow entries is 500, and the maximum number of block entries is 500 (1000 domain and email address entries in total).įor spoofed senders, the maximum number of allow entries and block entries is 1024 (1024 allow entries and no block entries, 512 allow entries and 512 block entries, etc.).Įntries for spoofed senders never expire.įor details about the syntax for spoofed sender entries, see the Domain pair syntax for spoofed sender entries section later in this article.Īn entry should be active within 30 minutes, but it might take up to 24 hours for the entry to be active. To connect to Exchange Online PowerShell, see Connect to Exchange Online PowerShell. To go directly to the Submissions page, use. To go directly to the Tenant Allow/Block List page, use. You open the Microsoft 365 Defender portal at. What do you need to know before you begin? You manage allow and block entries for email in the Microsoft 365 Defender Portal or in Exchange Online PowerShell. For more information about the Tenant Allow/Block List, see Manage allows and blocks in the Tenant Allow/Block List. This article describes how to create and manage allow and block entries for domains and email addresses (including spoofed senders) that are available in the Tenant Allow/Block List. Microsoft Defender for Office 365 plan 1 and plan 2.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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