IP address restricrtions

A few weeks ago, someone was trying to brute force their way into my site. I set a Wordfence option which means that I have to wait for an email, whenever I log in to authenticate my email address. Now that the attacker has gone away, I want to un-set that option, but I can’t find it in the options! That makes me feel rather stupid, but I’m hoping that someone can quickly remind me what I did and how to unwind it

BWs
james

https://wordpress.org/plugins/wordfence/