Can anyone guide me on coding an email that Siri and Google Now will pick up Schema.org markup from? -

microsoft have provided interesting documentation on passing data cortana, in example flight schedule using schema.org: https://msdn.microsoft.com/en-us/library/dn632191.aspx

does know if same method true ios , android platforms? if not can point me in right direction?

i reviewed documentation, you've posted. yes, can integrate google in similar way. can find supported google schemas in link below. you'll find microdata/json examples:

https://developers.google.com/schemas/now/cards

you can start testing gmail schemas below apps script quickstart tutorial personal gmail account. when from: , to: fields match each other, actions displayed. however, if try send gmail account, actions not appear.

https://developers.google.com/schemas/tutorials/apps-script-tutorial

note, if copy , paste examples in apps script, please use current date in order trigger card. example today's date:

"departuretime": "2015-06-22t20:15:00-08:00"  "arrivaltime": "2015-06-22t23:30:00-05:00" 

if plan use gmail schemas users/customers, you'll have register. can find details on how register @ link below:

https://developers.google.com/gmail/markup/registering-with-google

note, you'll have within guidelines , have provide sample email during registration process.

hope points right direction.