I just thought this might be helpful to anyone using Gmail. I have always wondered how to delete the large attachments that use up space in my email so for the benefit of anyone having the same problem, the solution is pretty simple. All you have to do is to a quick search.
You can just search by size and to do that, you just have to type size in the search bar with the minimum number of the email size including attachments. For example, you can type size:5000000 for emails that are greater than 5MB.
Below are the links that you might find useful to detect those email with huge attachments:
And then of course, don’t forget to empty the trash to regain the space that you need.