Then configure a new mail account in Outlook and connect to the IMAP server. It's optional, but convenient for replies, to configure the account to send via postfix if you have an internal SMTP server to connect to.
I gave up on email folders years ago, so at the end of the month would just create two new folders in the archive account (YYYYMM and YYYYMM_Sent) and drag all the mail from the Exchange account into the IMAP folders. Et voila! You now have your own local email archive.
https://www.digitalocean.com/community/tutorials/how-to-set-...
Then configure a new mail account in Outlook and connect to the IMAP server. It's optional, but convenient for replies, to configure the account to send via postfix if you have an internal SMTP server to connect to.
I gave up on email folders years ago, so at the end of the month would just create two new folders in the archive account (YYYYMM and YYYYMM_Sent) and drag all the mail from the Exchange account into the IMAP folders. Et voila! You now have your own local email archive.