You can require admin approval for all users before they can enter.
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Go toย Setting > Securityย and enableย User acceptance.
Optionally, you can automatically allow users from a particular domain, for example, your business email domain.
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You can see in the user list if the user is approved or not. Also, you can accept the user directly there.
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After the admin accepts, the user gets the below email so they know they can enter.

1 year ago
Hi, how are things?