Context for this issue
Sharon was printing emails from Proclaim, and the below would appear in the header of the printout:
Typically this would just show your name e.g.
Sharon had a former Employee's email account; Olivia Mckeefery's; in her Outlook.
Upon closer inspection, there was a 0 KB ost file in the Outlook data folder.
Solution:
Remove the Outlook Profile and create a new one.
Then check the Outlook Data File location:
C:\Users\USERNAME\AppData\Local\Microsoft\Outlook
With this example, Sharon had Olivia Mckee’s .ost file here but it was 0 KB. I deleted this and that seems to have sorted it.