I know there’s a share link and QR code to your delta chat profile, but what do people put in the bio of twitter or Bluesky or whatever just as like a static link for how people can reach you on delta chat?
For example, on mastodon you can put a bunch of fields on your profile like
@Low Yes, you did. However, most gratis chatmail relays are configured to deny both outgoing and incoming email if it is not encrypted.
You can lift this restriction if you host it yourself or you are friends with the operator.
Hence, you either need to specify an invite link or share your full public key out of band, such as via a QR code. Then your peer can compose an encrypted message to you. See also: