I know similar has been asked as I searched and tried to figure as it relates to my system. running Ubuntu 18 and other than some install for PostgreSQL, some recent security updates, etc... my file system drive has ballooned and is seeming to continue to shrink. Some additional searching regarding trying to figure what is taking room at /dev/sde1/
as shown in image below (highlighted) indicates maybe something to do with journaling or something which may have been triggered with getting a mail server up. I am not sure the best and safest way to approach this. This mount is my boot drive that is being affected.
Images to what I am seeing:
from cmd:
from webmin:
Thoughts on a sensible approach to this?