How to add locally stored emails to IMAP account

Yoni 0 Reputation points
2025-03-11T11:58:01.74+00:00

I just went from a POP3 email account to an IMAP account.

I backed up my POP3 emails, but I haven't been able to get all those emails sync'd into the IMAP account. When importing the backed up POP3 emails, they just get stored "on my comptuer"

No matter what I do, I haven't been able to just take all the emails/folders and add them to the sync'd IMAP account.

I have also only been able to look at these locally stored emails in the Outlook (Classic) version. In the (New) version the local files don't appear at all. I just want to take the local emails and add them to the IMAP account so that I can access all 100% of emails and folders from any device.

Any help much appreciated

Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
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  1. simo-k 4,185 Reputation points
    2025-03-11T16:58:52.27+00:00

    The new Outlook does not yet support PST files.
    Please copy emails from your archived PST file to your IMAP account.
    Do not copy folders.

    <Japanese>
    新しいOutlookは、まだPSTファイルをサポートしていません。
    アーカイブしたPSTファイルからメール単位でIMAPアカウントへコピーして下さい。
    フォルダ単位ではコビーしないで下さい。


  2. Faery Fu-MSFT 19,356 Reputation points Microsoft External Staff
    2025-03-12T07:32:58.3066667+00:00

    Hi @Yoni ,

    According to my research, currently, you can open .pst files, read e-mails in .pst files, and search .pst files for emails.

    To see if PST support is available in your copy of new Outlook, go to Settings > General > Outlook Data Files. It should be available to Microsoft 365 software subscribers who have joined the Insider program for Office.

    More details, see: Open and find items in an Outlook Data File (.pst)

    User's image

    Besides, I suggest keeping an eye on the Microsoft 365 Roadmap | Microsoft 365


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