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 on the link below.