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Exchange Team Blog
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General Availability of Mailbox Import and Export Microsoft Graph APIs

Nino_Bilic's avatar
Nino_Bilic
Icon for Microsoft rankMicrosoft
May 08, 2026

As a part of our continuing march to Exchange Web Service (EWS) deprecation in Exchange Online (see Exchange Online EWS, Your Time is Almost Up | Microsoft Community Hub) - the Microsoft Graph Team announced another milestone in enabling developers to efficiently manage, migrate, and integrate mailbox data in Exchange Online through Microsoft Graph:

If you develop applications that access mailbox data, you might be very interested in that. Please see the post for more details on current scope and production expectations.

Nino Bilic

Published May 08, 2026
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3 Comments

  • zhukl's avatar
    zhukl
    Copper Contributor
    Sep 16, 2026

    Nino_Bilic​ thank you for this update. Could you please clarify if it is a supported scenario, when we use exportItems Graph API call in EXO and pass the result to UploadItems in EWS in a self-hosted Exchange? Thank you.

    • Nino_Bilic's avatar
      Nino_Bilic
      Icon for Microsoft rankMicrosoft
      Sep 16, 2026

      Sorry to say - I am not certain of this; I do not know / understand supportability of things on the API level. You'll need to seek this answer on developer side of things, I'm afraid. I do know that we are not deprecating EWS on Exchange Server.

  • natemclean's avatar
    natemclean
    Tin Contributor
    May 28, 2026

    This really needs to support archive mailboxes, group mailboxes, and public folders. If you’re going to take away EWS and not provide another method of migrating data, that’s just crazy.