Recover 15 GB free by bulk-selecting Gmail attachments in Drive Fire up drive.google.com/drive/quota, tap the 15 GB gauge, flip to "Gmail" and punch "→" adjacent "Attachments mirrored to Drive". The grid flaunts every .jpg that arrived in mail and was backed up. Check the top checkbox a single click–Drive highlights 100 items at a time. Slam ⇧+↓ two-oh times to tag 2 000 items in 12 secs. Choose Trash → "Move to trash" → "Nuke". Mean size of 2 000 Gmail files is 1.3 GB