It could be a cool idea to put some automation in place to automatically notify you when 5+ email adresses sign up from a domain so that you can review and potentially block the domain if it’s spam.
Just had one of those funny looking emails come through via an opayq.com email address. Anybody else? I’m unsure if this email address is fake or actually real, and whether opayq.com should be added to the list of blocked domains.