MMC has detected an error in the snap-in message

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The "MMC has detected an error in the snap-in" message often appears when trying to manage SMTP settings on Windows Server 2022 using IIS 6.0 Manager. This is because IIS 6.0 is an older version, and Windows Server 2022 uses newer technologies, leading to compatibility issues



 

 

 

 

 

 

 

 

You are getting the above issue, no worries, i will tell you the exact fix.

 

 

 

 

Solution:

 

 

  • Stop the IISAdmin and SMTPSVC services. 

 

 

  • Edit the MetaBase.xml file located at C:\Windows\System32\inetsrv\MetaBase.xml.

 

 

 

  • Find the line <IIsSmtpServer Location="/LM/SmtpSvc/1" and add RelayIpList="" within the same line. 

 

 

 

 

 

 

  • Save the file, then restart the IISAdmin and SMTPSVC services. 

 

 

 

 


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