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Question

Collaboration is restricted for external user

  • May 22, 2025
  • 1 reply
  • 23 views

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Hi,

When I attempt to invite a user to a folder I get the following error:BOX__7mT3O-QQR5vdD93KCksz9w.jpegDoes anyone know if this site is being blocked by a firewall on their end?

1 reply

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Hi Thomas, 

Welcome to the Box Community!

The error you are seeing when inviting a certain user is possibly caused by "Collaboration Allowlist".

Please take a look at this article: https://support.box.com/hc/en-us/articles/360044194913-Content-and-sharing-settings-for-your-enterprise 

Specifically:

Limit collaboration to allowlisted domains: Box Governance enables you to restrict collaboration to an approved set of domains, or a allowlist

If your domain is not listed in their enterprise' "Collaboration Allowlist", you won't be able to collaborate with this user. 

You may want to discuss with the user about using another email or if they insist of using this particular email, they would need to discuss with their Box admin on adding your domain on their allowlist.

Thanks for your participation in the forum!

Best,