Searching or ordering emails to find the right ones can be a nightmare for those of us who have large folders. Finding an email quickly even if you know the right folder you’ve stored it in can take time.
To speed this up outlook has built in sort by features, but you can take this one step further by sorting on multiple fields at once.
First click the “size” column and your folder in outlook will order based on the size field (largest first). Now hold down the shift key and select the subject column. Your emails are now reordered to show emails with largest size and alphabetically based on subject.