I’m working on https://tempmaildetector.com and more specifically a Wordpress plugin to support it: https://wordpress.org/plugins/temp-mail-detector-block-tempo...
The plugin offers users a way to input their own block lists, a pre-existing one, or make use of the API which is constantly getting updated.
As a first time Wordpress plugin developer, the approval process was a bit slow but it’s like that for a good reason.