Laura splits her time between being a movie and television reviewer as well as a tech writer. Along with contributing to MTE, she is the site admin of realityshack.com , the chief editor of applemagazine.com, and a contributor to the TechLife News digital magazine.
In your Gmail, all you have to do is to enter the term size:10mb in the search box and all emails larger than 10MB will show up in the list. You can change the number to reflect the size you want to filter.
This is so far the easiest way to filter your emails by size.