I have a few ex-staff who I want to close off their accounts on Office 365 and free up the licences, but first I want to export their entire mailbox.
I did this before by opening the user's mailbox in Outlook and exporting as .pst, but later discovered that this process doesn't export everything, only the emails actually downloaded to the folders and sub-folders.
Most of the older emails are not downloaded to the Outlook client until, at the bottom of each folder, you click "There are more items in this folder on the server. Click here to view more on Microsoft Exchange."
Now before I go into every single folder and click this link, I want to be sure I am doing this the best, and easiest way.
Can someone please confirm the easiest, most straightforward and most reliable and comprehensive way to export every email is a user's Office 365 E1 plan account out to .pst file.
Thanks in advance for help.