I have been tasked with identifying why a particular User on our Network has differing .OST file sizes compared amongst (3) connected devices - (2) HP Elitebook laptops and (1) MS Surface Pro 2
The locally stored .OST files are 6.1GB, 14.3GB, and 11.7 GB respectively. To help figure this out I deleted the .OSTs on all devices, uninstalled Office Suite on all, rebooted, then individually logged in as the User, installed Office again and loaded the Outlook profile from scratch. I had also moved all of the original Outlook files (.OST, xml, etc) into another folder so that Outlook would not load off of them. When finished, the devices all had different sized .OST files and I cannot figure out why.
I was looking at this because the User was stating how some emails could not be found on one device yet they could be found on one of the others. The User sees many issues with Calendar invites and updates not working properly as well as receiving many Sync issues in the Sync Issues folder.
Could this occur due to differing Cached Mode settings? I did not check that yet as it just now popped into my head.