I suggested a mechanism for doing it that does not require input from the remote controller. Allow another email with the addition or change to the caption on the subject line and a reference date or jpeg name. Alternatively, assign every photo a number unique to ones pixstar and let that number be referenced in the update email. It's easier to compose a new caption remotely and then send it as a subject line in an email.
I suggested a mechanism for doing it that does not require input from the remote controller. Allow another email with the addition or change to the caption on the subject line and a reference date or jpeg name. Alternatively, assign every photo a number unique to ones pixstar and let that number be referenced in the update email. It's easier to compose a new caption remotely and then send it as a subject line in an email.