+1
Signup blocking, import/export, CRUD api.
While the signup blocking panel is handy, it becomes a problem quickly when you want to bulk load a list of domains, or even move a populated list from one BLOX site to another.
It would also be handy to be able to use repositories that contain full list of "toxic" email domains... Like:
* https://github.com/martenson/disposable-email-domains
* https://github.com/ivolo/disposable-email-domains
Over even to setup an import of domains from sites like stopforumspam.com.
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