because the masked email API matches the rest of the JMAP API, so it's easy to extend and support. Also, 1Password isn't running Dovecot, Fastmail is. So they'r

because the masked email API matches the rest of the JMAP API, so it's easy to extend and support. Also, 1Password isn't running Dovecot, Fastmail is. So they're asking a 3rd party is a fairly standards conformant way to go and create a new email alias