Exchange MB 2016 backup issue

Last post 07-03-2019, 8:53 AM by iConsultant. 3 replies.
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  • Exchange MB 2016 backup issue
    Posted: 06-24-2019, 12:58 PM


    Backing up Exchange 2016 Mailbox (Classic) goes into pending state. Entry in log file:

    Exchange auto discover for CAS server for XXX failed with error [The request was aborted: Could not create SSL/TLS secure channel.]
    Error in getting the Exchange Server settings, failing the backup.

    Anyone happened to see this specific error before / knows a solution?


  • Re: Exchange MB 2016 backup issue
    Posted: 06-25-2019, 1:56 PM

    Can you perform a manual discovery and then run a job - does this work?

  • Re: Exchange MB 2016 backup issue
    Posted: 06-25-2019, 8:24 PM

    Check if the Certificate used on the Exchange 2016 servers are SHA1

  • Re: Exchange MB 2016 backup issue
    Posted: 07-03-2019, 8:53 AM

    Thanks all. Configuring a Proxy server for MB backup in combination with the MapiHttpDisabled reg key solved the issue.

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