Submit CSR

I purchased the SSL certificates to install them onto email servers.

Here are some notes.

First, you create the RSA private key.
$ openssl genrsa -out your_mailserver_com.key 2048
To bypass the pass phrase requirement, omit the -des3 option when generating the private key.

Then, you generate CSR.
$ openssl req -new -key your_mailserver_com.key -out your_mailserver_com.csr
Skip "challenge password", and "optional company name".

Submit CSR to the service provider.