Hello
Thank you for posting in Q&A forum.
If the users are in the same network, you can try:
- If you have your own DNS server, you could try to redirect the Gmail or other website you want to block, to a specific IP address.
- You could block the website or IP address through your network device(router/switch).
I hope the information above is helpful.
If you have any questions or concerns, please feel free to let us know.
Best Regards,
Daisy Zhou
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