Leviathan Security Group, a Google certified security company, performed a security assessment and review in January 2020 and verified acceptability by Google for the purpose of continued access to specified Google APIs. This review included a penetration test and document review of the RPost applications interfacing with Google as well as an assessment of the applications themselves, supporting infrastructure, and answers in to a self-assessment questionnaire. RPost applications interfacing with Google include RMail for Gmail which accesses services for RMail email encryption, Registered Email™ open tracking and certified e-delivery proof, and RMail electronic signature (RSign Lite) services.

The Leviathan Security Group Letter of Acceptance that summarized this security review is available for download by clicking the link below.