We have an Outlook 2013 client that's using POP-based email, and I am unable to archive or to move certain emails into another PST.
For example, there are emails which are responses to calendar invitations and emails sent to two specific email addresses that I can move among folders in one PST, but as soon as I try to move them to another PST, I get "cannot move the items". When I try to run an archive, I get: "Error while archiving folder inbox in store some items cannot be copied. They were either moved or deleted or access was denied."
The source PST is ~18GB and is prone to getting corrupted periodically, hence why I am trying to archive / offload some of the email. The destination PSTs are created fresh, and I have tried more than one. Emails other than the problematic ones can be moved or archived no problem.
Looking for suggestions. Thanks!