apply_mailbox_operations

Draft replies on any readable Inbox thread, or create_thread with to, subject and body to save a new outbound draft. draft accepts subject and thread-scoped attachment IDs. prepare_attachment returns a short-lived raw upload ticket (use qraft mailbox attach FILE); attach_file copies a Files driveId/nodeId/versionId item server-side. Place {{inline:ID}} in body for attached PNG/JPEG/GIF/WebP images. Organizing threads requires authorization. Only the owner account sends; its agents follow owner policies. Only the owner configures and authorizes threads. Inbox address tests and primary selection (send_domain_address_test / claim_domain_address with domainId and local; send_alias_test / use_qraft_primary; release_domain_address / remove_receive_address require confirm:true) also permit the process-verified project lead with Inbox access and organization manager permission; primary selection requires a live address.