treefit on Nostr: unless you are using your own fork of delta chat you don't need to host your own ...

unless you are using your own fork of delta chat you don't need to host your own relay server, you just need to modify your email server to send the pings over our push relay, which has the secret keys that apple needs, to accept the push notifications for the app id of the delta chat that is published to the appstore.

Ideally we would have an easy plugin or a spec on how to integrate push into existing email servers, but for now you'd have to read the chatmail sourcecode.