insert into `message_transports`
(`message_attribute_id`, `message_transport_type`, `is_digest`, `letter_module`, `letter_code`)
values
(1, 'email', 0, 'circulation', 'DUE'),
(1, 'email', 1, 'circulation', 'DUEDGST'),
(2, 'email', 0, 'circulation', 'PREDUE'),
(2, 'email', 1, 'circulation', 'PREDUEDGST'),
(1, 'sms',   0, 'circulation', 'DUE'),
(1, 'sms',   1, 'circulation', 'DUEDGST'),
(2, 'sms',   0, 'circulation', 'PREDUE'),
(2, 'sms',   1, 'circulation', 'PREDUEDGST'),

