SimpleLogin doesn’t allow too many aliases for a given site like Reddit, even with a custom domain. I get that services don’t want to ruin their own email domains, but I should be allowed to do whatever I want with my own domain.
You could go with a regular mailing service that has a catch all feature and the ability to forward emails to your main address. You lose out on all the useful features such as disabling certain addresses and open your inbox to more spam but it’s an idea.
Not gonna outright recommend them in a privacy subreddit but for example Cloudflare has a feature like this from what I can tell and so does Apples paid icloud plans.
Could setup your main address as name@example.com and your catch all with a subdomain such as servicename@mail.example.com and just have them forwarded to the first address
