Spam Experts Help

Why Can't I Upload my Certificate or get an Error when Trying?

You will only be able to upload a certificate if you have the Branding product.

In the Branding Management section, once you have added a custom Hostname, you can choose from the following options:

  • Generate and manage a TLS certificate for me via Let's Encrypt - the system will automatically generate a certificate
  • have a Let's Encrypt certificate generated by us. This will apply to the Hostname that you used.
  • Upload your own certificate bundle - Upload your own custom certificate(s) in a PEM file

If uploading your own certificates, make sure you upload all the necessary files with the correct components in the specified order.

If you want to make sure all the components are in the correct order, you can send the file to Support to check it.