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Exchange 2013 deploys WAF, Outlook client cannot connect

林牙 腾格里 0 Reputation points
2024-07-25T11:59:43.37+00:00

Exchange 2013 deploys WAF, Outlook client cannot connect，other clients are ok.error:RPC server unavailable

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Mike Hu-MSFT 2,490 Reputation points Microsoft Vendor
    2024-07-26T06:25:09.78+00:00

    Hi,

    Welcome to the Microsoft Q&A forum!

    The "RPC server unavailable" error can stem from a variety of causes, including network configuration, firewall settings, or RPC service issues.

    Ensure the RPC proxy component on the Exchange server is properly configured. You can verify this in the Exchange Management Shell with the following commands:

    Get-OutlookAnywhere 
Get-ClientAccessServer | fl

    Ensure the "Microsoft Exchange RPC Client Access" service is running on the Exchange 2013 server. - You can restart the service to see if it resolves the issue: 

     Restart-Service MSExchangeRPC

    RPC over HTTP, which was not supported by WAF 2.2.0.0-12waf and earlier. So, you can check this also.

    More details you can refer to:https://www.sonicwall.com/support/knowledge-base/waf-common-configurations-for-securing-owa-activesync-and-outlook-anywhere-to-access-exchange-mailbox/181218235648455/

    Please feel free to contact me for any updates. And if this helps, don't forget to mark it as an answer.

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