This “old” discussion covers saving space on a Mac by deleting email attachments - when message is selected go to the Message menu and select Remove Attachments:
I am looking for the equivalent in Mail on the iPad or iPhone. When I receive an email with, say, a large photo that I don’t want to keep I would like to remove the photo but keep the body of the email. Also automatically remove the attachment for other devices (exactly how Mail on Mac works).
I have found how to “Review Large Attachments” in Settings/iPad Storage but, puzzlingly, this doesn’t allow me to delete photos attached to a recent email.
At least iPad Mail allows me to choose whether to download large attachments but that is not much use if I actually want to briefly view the photos.
Update: I have submitted Feedback to Apple on this.
As an afterthought… it would also be useful if “Save Attachment” gave the option to remove the item from the email (just like the Photos app works when importing photos from an SD card). Why would I want to keep it in two places?