Juba007 This extension allows you to whitelist or blacklist custom email adresses by domain or regex: https://flarum.org/extension/clarkwinkelmann/flarum-ext-email-whitelist If you mean disposable emails (like 001gmail.com) you can use this extension: https://flarum.org/extension/fof/disposable-emails
clarkwinkelmann As suggested by Juba007 my email whitelist extension should work here, you just need to craft the right regex
luceos Walys what you imply is sub addressing: https://en.wikipedia.org/wiki/Email_address#Sub-addressing This could be done with a local extender as well as a little extension. Don't currently have the time to write the code for it though.
