It took just shy over a year, but we finally managed to get an MVP out the door. I was hoping to have an MVP completed a lot sooner, but it turns out there are many features and tech that go into even the most barebones email clients.
We've decided to slowly increase the user limit to ensure the decentralized tech scales and prevent abusing our IP addresses on our email server (spammers). These limits should be short-lived, and we hope to have the service opened for everyone very soon!