Salaudeen Rajack

Salaudeen Rajack - Information Technology Expert with Two decades of hands-on experience, specializing in SharePoint, PowerShell, Microsoft 365, and related products. Passionate about sharing the deep technical knowledge and experience to help others, through the real-world articles!

6 thoughts on “SharePoint Online: How to Limit External Sharing by Domain?

  • Does the 500 limit at the site level count towards the total 2000 limit at the tenant/admin center level?

    For ex: If there are four sites and each site restricts 500 unique domains (for total of 2000 unique domains) and lets assume there are no domains configured in Tenant/Admin Center, will the domains configured at the site level exhaust or count towards the 2000 limit allowed at the Tenant/Admin Center level?

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  • If we uncheck the box ” Limit external sharing by domain”, will the existing users lose access ?

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  • HI is it possible to whitelist specific email from the blocked dumain to access site?

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  • The maximum number of domain that can be added is 500 and not 60 in SharePoint admin Portal.

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  • Great overview… can you share how this interacts with the Azure AD B2B settings for external collaboration. Are these SharePoint settings in addition to those in AAD (ie: AAD takes precedence), or are they two distinct settings?

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