Microsoft Defender for Office 365
Email and collaborationTenant Allow Block List Urls Configure
In brief
The documentation now states that Unicode is unsupported and Punycode is allowed only in hostname labels before a normal ASCII TLD.
What Defender admins need to know
Ensure configured Punycode URLs follow this format; no mandatory action or deadline is stated.
Summaries are generated from the documentation change itself.
Documentation change
View on Microsoft LearnThe comparison below shows only the changed extract. Use the full-page view for complete context.
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https://microsoft-devrel.poolparty.biz/DevRelOfferingOntology/c671beaa-a830-4c9f-aceb-97379ee031ca
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IPv4 and IPv6 addresses are allowed, but TCP/UDP ports aren't.
Filename extensions aren't allowed (for example, test.pdf).
Unicode isn't
supported, butsupported. Punycodeis.is only allowed in hostname labels before a normal ASCII TLD.Hostnames are allowed if all of the following statements are true:
- The hostname contains a period.
@@ -36,9 +36,11 @@ monikers: [] item_type: Content source_path: defender-office-365/tenant-allow-block-list-urls-configure.md cmProducts:+- https://microsoft-devrel.poolparty.biz/DevRelOfferingOntology/5cf46315-b33f-4e99-8224-a1592697eff9 - https://microsoft-devrel.poolparty.biz/DevRelOfferingOntology/c671beaa-a830-4c9f-aceb-97379ee031ca - https://authoring-docs-microsoft.poolparty.biz/devrel/6ab06385-661e-4214-8870-bbe4071c960d spProducts:+- https://microsoft-devrel.poolparty.biz/DevRelOfferingOntology/715d24c3-3683-4219-82c5-1e3c813fb7fc - https://microsoft-devrel.poolparty.biz/DevRelOfferingOntology/8921374c-4dbe-4ed0-b011-a39e18bfbd98 - https://authoring-docs-microsoft.poolparty.biz/devrel/131ba09e-4280-4ae7-8622-1f9f1c0daad1 platformId: c6aa9dd7-6d2e-c708-92c2-4808bca840cf@@ -360,7 +362,7 @@ For detailed syntax and parameter information, see [Remove-TenantAllowBlockListI
- IPv4 and IPv6 addresses are allowed, but TCP/UDP ports aren't.
- Filename extensions aren't allowed (for example, test.pdf).
-- Unicode isn't supported, but Punycode is.
+- Unicode isn't supported. Punycode is only allowed in hostname labels before a normal ASCII TLD.
- Hostnames are allowed if all of the following statements are true:
- The hostname contains a period.