http://swonderstzr43aczpcwdoyc25vwxngyromja7pyb5sf26ap3v535sxqd.onion/resources/is-it-possible-to-extract-metadata-from-a-photo-attached-to-an-email
However, depending on what email client (app) was used, whether the photo was emailed via a chat app (for example: wechat, messenger etc) and the recipient’s email server as the amount of meta data obtained may vary. You might obtain the metadata as identical to the original photo, or find it stripped (completely removed) or only able to extract some of the metadata or otherwise have new metadata added (tampered).