I'm trying to downsize an exchange mailbox that has emails going way back to 2001. My plan is to cache the entire mailbox to my PC locally. Then archive 2001 to 2022 by year.
I'm using the Outlook "Clean up old items..." function and set it to archive items older than 12/31/2001. Did the same all the way up through 2009. But when I look at the pst files, they are all 265 KB is size. If I open them in outlook, they are just empty.
I have made sure cached exchanged mode is set to download All from the past. Also confirmed all the emails are already cached locally and able to open the oldest email from 2001. Running Microsoft 365 Office Outlook installed on Windows 10 Pro.
For the life of me, I can't seem to get outlook to archive anything into a pst file. What am I doing wrong? Any help would be appreciated!