If you would like to restrict or validate mail addresses during guest registration, you can use simply restrict domains. An example of a mail validation for the provided user and sponsor mail address is.

user mail validation (the mail address should not be a company mail address)

array (
‘deny’ =>
array (
0 => ‘booches.nl’,
),
‘allow’ =>
array (
),
)

sponsor mail validation (only company mail domain is allowed)

array (
‘allow’ =>
array (
0 => ‘booches.nl’,
),
‘deny’ =>
array (
0 => ‘*’,
),
)

These settings can be changed under “Validator Arguments” from the Form fields.

Guest Form

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• Bio
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René Jorissen

Co-owner and Solution Architect at QMonkeys

René Jorissen works as Solution Architect for QMonkeys in the Netherlands. Network Infrastructures are the primary focus. René works with equipment of multiple vendors, like HPE Networks, FortiNet, SentinelOne, Phished, Holm Security, Microsoft services and many more. René is Aruba Certified Edge Expert (ACEX #26), Aruba Certified Mobility Expert (ACMX #438), Aruba Certified ClearPass Expert (ACCX #725), Aruba Certified Design Expert (ACDX #760), CCNP R&S, FCNSP and Certified Ethical Hacker (CEF) certified. You can follow René on Twitter and LinkedIn.

Latest posts by René Jorissen (see all)

• ClearPass 6.12 EAP-TLS Authentication Issues – “No Suitable Signature Algorithm” - February 11, 2026
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