Why did I receive a. ZIP folder with multiple files?
After the successful validation of your order you will receive an e-mail with a. ZIP folder in the Appendix.
The contained .Cert file is the actual certificate that you install as usual.
The .CA file is the file that contains the root certificate.
Depending on the platform used, the server may need a different file extensions. If this is the case, you can simply rename the .CA file extension.
Then install the .Ca file in the root certificates and, in case you use IIS, reboot. Then you simply need to check whether EuropeanSSL is setup in the list of installed root certificates.