Hi,
Thank you for your answer,
I added the "Validator Argument" in the "sponsor_email" form:
array (
'allow' =>
array (
0 => 'domain.com',
)
'deny' =>
array (
0 => '*',
)
)
I changed the URL serer as you wrote and added "display Attributes" - email = id. (screenshot attached)
It now works so that everyone who has the @ domain.com email address are "sponsor", and can accept internet access for the guest.
I would like it to work based on the AD group.
I will be grateful for any suggestions.