This support ticket is created 2 years, 4 months ago. There's a good chance that you are reading advice that it now obsolete.
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I have a custom field type Email Address set to required. The form will submit even if the field doesn't contain an email address. If I do a check using cred's form validation hook and the wordpress function is_email, the form behaves correctly and doesn't submit if the field doesn't contain an email address.
We are talking about Post forms rather than User forms?
Did you specify in the email field settings that the field is both required and should be a valid email address? (I'm not sure the latter is necessary, but it is what I have on my test site.)
Thanks for testing. I haven't changed anything regarding the field settings (they've always been "required" and set to validate as an email) however on checking them, the "validate as email" box is currently unchecked which explains why it's not validating (!) but not how it became unchecked. I'll monitor in case it happens again.
Hope all's well with you (it's been a while)
This ticket is now closed. If you're a Toolset client and need related help, please open a new support ticket.