caption: the mailtrack that is on display in the mail screen
exif: {"Image Artist": "Raj", "Image ExifOffset": "2122", "Image XPAuthor": "", "Image Padding": "[]", "EXIF DateTimeOriginal": "2019:04:03 11:13:55", "EXIF DateTimeDigitized": "2019:04:03 11:13:55", "EXIF SubSecTimeOriginal": "02", "EXIF SubSecTimeDigitized": "02", "EXIF Padding": "[]"}