Who can use this: Site admins, and accounts granted the domains.catchall permissionAs Markdown
destination is the catch-all's mailbox, or null when the domain has none. The domain takes mail while both mail_enabled and active are on. send_enabled is whether the catch-all's mailbox may also send from any address at the domain, and has_dkim whether the domain signs the mail it sends.
Good to know
Yes-or-no fields come back as 1 or 0, and the catch-all's own fields as null when there is none.