Metadata Examples
// file.meta
To=support@droptosend.com;billing@droptosend.com
Subject=Sample document
Body=Hello,%0D%0AThis is a test via DropToSend.
// file.meta.csv
To,Cc,Subject,Body
support@droptosend.com,ops@droptosend.com,Sample,"Hello,\nThis is a test."