This is how the email system works. We invited everyone from our waitlist ahead of the beta. But we can’t control email deliverability. We know that several % of our letters never reach recipients, but have no influence how to change that. Very annoying. And sorry you didn’t get your invitation
Yeah... no it isn't. Blaming people's email servers is the wrong move here. I've used Fastmail.com for the last 5 years, I keep my inbox at 0 and I look at my spam folder every week. I've never had an issue receiving email before. And by the way, over those years I signed up for the beta multiple times. All kinds of wild shit makes it through to my email, so there's no way your invite got bounced. Good luck.