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How to Disable 1.3 TLS encryption - Troubleshooting Issues when using Send Email Advanced commands

  • June 20, 2024
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Topic

Introduction:
This article contains information on how to Disable 1.3 TLS encryption. In some cases this can cause issues when using email advanced commands.

Behavior:
Unable to send email using the advanced command. No changes were made in the wizard or Nintex configuration. 

 

 

Instructions 

 

1.  Open Windows Registry Editor:

 


2. Navigate to:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.3\Client.

 



3. Change the Enabled key to 0.
4. Restart the Studio/Robot.

 

 

 

Additional Information

Possible cause:
Windows update, Group Policy