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  1. Download ActiveSync 4.5 from Official Microsoft Download Center

    Jul 15, 2024 · Microsoft ActiveSync 4.5 is the latest sync software release for Windows Mobile-powered devices. ActiveSync provides a great synchronization experience with Windows®-powered PCs and …

  2. Exchange ActiveSync | Microsoft Learn

    Apr 30, 2025 · Exchange ActiveSync is an Exchange synchronization protocol that's optimized to work together with high-latency and low-bandwidth networks. The protocol, based on HTTP and XML, lets …

  3. Exchange ActiveSync in Exchange Online | Microsoft Learn

    Feb 22, 2023 · Exchange ActiveSync is a Microsoft Exchange synchronization protocol that's optimized to work together with high-latency and low-bandwidth networks. The protocol, based on HTTP and …

  4. Configure mobile phones to access email in Exchange Online

    Feb 22, 2023 · You can configure a mobile phone to use Microsoft Exchange ActiveSync. You should perform this procedure on each mobile phone in your organization.

  5. Enable or disable Exchange ActiveSync access to mailboxes in …

    Apr 30, 2025 · Learn how administrators can enable or disable Exchange ActiveSync access to specific mailboxes in Exchange Server 2016 or Exchange Server 2019.

  6. Mobile device can't connect via ActiveSync - Exchange

    Jun 25, 2025 · Describes a scenario in which a mobile device can't connect to Exchange Online in Microsoft 365 by using Exchange ActiveSync. Provides a resolution.

  7. Configure mobile phones to access email in Exchange Server

    Apr 30, 2025 · Summary: Learn how to configure a mobile phone or device to use Exchange ActiveSync.

  8. Mobile devices | Microsoft Learn

    Apr 30, 2025 · Exchange ActiveSync enables you to send a remote device wipe command that wipes all data from a mobile device in case that mobile device is lost or stolen. Users can also initiate a …

  9. Device management with Exchange - Configuration Manager

    Oct 4, 2022 · If you have mobile devices that you connect to Exchange Server via the ActiveSync protocol, you can use the Exchange Server connector in Configuration Manager to manage these …

  10. Exchange ActiveSync device settings with Exchange hybrid deployments

    Jan 27, 2023 · Exchange ActiveSync device settings with Exchange hybrid deployments Exchange ActiveSync devices are automatically reconfigured when a mailbox is moved from an Exchange on …