How to block a certain emailaddress sitewide?
I have a client that has a customer she wants to add on the blacklist. Is there a way to prevent this person to do anything on the site?
No form submissions, no purchases, no bookings?
TIA
Create a role that has no access to anything.
Also, if you have saved their IP you can block it but they can use a VPN and get around that.
Add a snippet that checks the email field for blacklisted emails. This can be used as a blueprint: https://fluentforms.com/docs/email-verification-with-emailable/
Just omit the form ID and replace emailable with a static list of email addresses or even domains. You can then tweak the error message to something like „Sorry. You’re not allowed to use this form.“
André Daus does this work for fluentcart and booking too?
Natascha Vantuykom no, unfortunately not. Because you posted it in the FluentForms group, I assumed you talk about FluentForms. You'd need a similar snippet for each Fluent product.
There isn't a built-in sitewide blacklist that blocks an email address across Fluent Forms, purchases, and bookings all at once.
For Fluent Forms, you can block the email using the form's restriction/keyword restriction settings. FluentBooking and FluentCart don't currently have a built-in email blacklist, so those would need to be handled separately with custom validation or another restriction method.
If the person already has a WordPress account, blocking or disabling that account is also a good option. Just keep in mind that blocking by email only works if they continue using the same email address.