Parsing emails seems to have got a whole lot easier - most I interact with have started moving to schema.org microformats (eg, https://schema.org/FlightReservat

Parsing emails seems to have got a whole lot easier - most I interact with have started moving to schema.org microformats (eg, https://schema.org/FlightReservation https://schema.org/FlightReservation and https://schema.org/LodgingReservation https://schema.org/LodgingReservation for flights & hotels respectively). It seems google/gmail are backing this quite extensively, which is how it's finally found traction.