I think a bridge between the SMTP system and Nostr would be useful, but I wouldn't want to open that gate too far. Maybe an email client that could bring in MIME or IMAP into a self-hosted Nostr node? Being able to receive email to our Zap address ON Nostr would also be cool.
Discussion
You can already get your email to your nip5 in snort I think
I’m more interested in being able to notify people about content without it getting lost in the noise. I know many businesses would like that.