Stop people from a certain domain registering
My original powerstore 1 site is having problems.
It's a Drugs Recognition trainers site who is closely associated with the police.
We have a nuisance register, who is repeatedly registering using various email addresses from the same domain name and sending nonsence emails through the contact form.
We wish to stop people from this domain registering, and sending emails through the contact form, is this possible?
I have all the extensions to hand.