Try USERNAME/Library/Mail.
Do a “get info” on the folder and check out the size. Leave it open, and then sync your email and then watch it grow!
![](https://www.anintegratedworld.com/wp-content/uploads/2020/06/osx-mail-location-582x1024.png)
Try USERNAME/Library/Mail.
Do a “get info” on the folder and check out the size. Leave it open, and then sync your email and then watch it grow!