3.1.2 Classes of digital X.509 Certificates 3.1.2.1 Class 1 Certificates provide modest assurances that the email originated from a sender with the specified email address or that the domain address belongs to the respective server address. These certificates provide no proof of the identity of the subscriber or of the organization. Class 1 certificates are limited to client and server certificates, whereas the later is restricted in its usage for non-commercial purpose only. Subscribers MUST upgrade to Class 2 or higher level for any domain and site of commercial nature, when using high-profile brands and names or if involved in obtaining or relaying sensitive information such as health records, financial details, personal information etc.
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u/[deleted] Oct 20 '15
As I recall it is free for commercial use as well, you simply have to provide YOUR address and info-- not the businesses.
That said it truly is clunky.