In software and systems engineering, a use case is a list of steps, typically defining interactions between a role/persona and a system/application, to achieve a goal (Source: WikiPedia)
The WordPress email registration blacklist plugin allows you to block users who try to register on your WordPress site using an email from a domain or email defined in your blacklists or approve only users from a whitelist.
Avoid spam, virus, malware, disposable emails and unwanted users!
![[WP101] Debugging and Finding Errors in WordPress](https://static05.cminds.com/wp-content/uploads/WordPress-Debugging-blog-banner-45x45.png)
