If you have an existing certificate in your certificte store that you want to use with Metadefender Email to enable incoming TLS it will first have to be exported into a .pfx file. Follow the instructions below to export the certificate.

1. Run Microsoft Management Console (mmc.exe).

2. Add the Certificates Snap-In:

   1. Select File > Add/Remove Snap in...

   2. Select 'Certificates' and click 'Add >'.

   3. Select the account for whom the certificate is installed (usually this is 'Computer account'), then click 'Next >'.

   4. Select 'Local Computer' if the certificate is installed this computer, then click 'Finish'.

   5. Click 'OK' to close the 'Add or Remove Snap-ins' dialog.

      

   6. Navigate to the certificate you wish to export, then right-click and select 'All Tasks > Export...'.

   7. Click 'Next >' in the 'Certificate Export Wizard' welcome step.

      

   8. Select 'Yes, export the private key' and click 'Next >'.
      
      
      Note: The certificate must include the private key, so If this option is unavailable the certificate cannot be used with Metadefender Email.
      

   9. Select 'Personal Information Exchange - PKCS #12 (.PFX) and click 'Next >'.

      

   10. Specify a certificate password and click 'Next >'.

       

   11. Specify a file name for the exported certificate and click 'Next >'.

       

   12. Click 'Finish' to complete the export.

       

   13. A dialog will display that export was successful.

       

Once the export is complete, refer to TLS support (Incoming/Outgoing emails) for instructions how to install the certificate in Metadefender Email.