No I mean if you want to “replace your email inbox” how do you sign up for sites and apps that require an email address?
Discussion
Just use nostr.
Not helpful
Two scenarios I can think of:
1. The website would have to create a nostr account and you'd provide your npub for them to send you "mail" to.
2. If the website hasn't created a nostr account, maybe a bridge can be created that forwards any emails sent to an email address to a nostr inbox.