You might be required to add PST files to an IMAP server in case you would like to read your Outlook mails on multiple devices. Important things that are in your mailbox, such as emails, attachments, contacts, calendars, and other Outlook items, are saved in PST files. PST files, in contrast, are on a computer whereas IMAP servers put emails in the cloud through which anyone can view them anywhere. Due to this dissimilarity, the user might require a system to transfer PST data to an IMAP-based account where they have a high degree of trust.

You can either do it yourself or contract someone to do it. Creating an IMAP account in Microsoft outlook and manually transferring emails of the PST files to IMAP mailbox folders. This approach is effective with limited data volumes, although it may be more time-consuming and needs appropriate configuration in the Outlook.

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