For some reason, our emails stopped working?
We were using WP Mail , but I had a hunch that it might get blocked so we tried using SMTP Email with all settings, but then the join class-form was just spinning (and not sending anything).
So I set it back to WP Mail and installed a WP Mail Options,
so that i can "transform" WP Mail into acctually using SMTP settings.
And then I sent a test-mail through WP Mail Options, and that works fine.
But your plugin still won't send any emails :(
Also - your website has been down for almost 48 hours, what's going on?