Exchange server - Event ID 36887 36888 36874

超 马 201 Reputation points
2021-01-29T10:22:32.86+00:00

Hi,

I got the following errors in our Exchange server 2016. The TLS 1.2 1.1 1.0 protocols are enabled in Exchange server side. From the kb https://learn.microsoft.com/en-us/archive/blogs/silvana/schannel-errors-on-scom-agent,the issue could be related with SHA-512. However the certificates in our Exchange server is SHA-1. Any clues?

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Exchange | Exchange Server | Management
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  1. Yuki Sun-MSFT 41,381 Reputation points Moderator
    2021-02-01T03:06:07.31+00:00

    Hi @67085432,

    Is this a recently occurred issue after any changes were made in your environment?
    Is everything works fine on both the users side and the Exchange server side?

    Based on my research, if it is not causing any problems, this kind of Schannel event logging can be safely disabled by setting the value of the EventLogging key to 0:

    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SecurityProviders\SCHANNEL    
    

    - Value Name: EventLogging

    • Data Type: REG_DWORD
    • Value: 0
      62266-1.png

    If any potentially relevant issue was noticed, you can post back with more information so that we can help do further research on this.


    If an Answer is helpful, please click "Accept Answer" and upvote it.
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