Deleting large emails is the fastest way to open Gmail. Cloud storage makes it easy to download and share files, and many businesses (or businesses) still send large email attachments, but I wonder where the 15GB of storage is and why? buy more? The fastest way to free up space. This can be done using the size parameter. Enter “height: 5 meters” in the Gmail search bar. Gmail will show all emails with storage greater than 5 MB. You can find the number you need, then identify and delete emails you don’t need. You can, for example, experiment with different words. b 1 MB for messages over 1 MB, 20 MB for characters over 20 MB The number preceding the m indicates how many megabytes should be filtered away, which can be modified as needed.