Ballot SMC012: Introduce ACME for S/MIME Summary: This ballot introduces a new method for validation of mailbox control, using ACME for S/MIME as defined in RFC 8823: Extensions to Automatic Certificate Management Environment for End-User S/MIME Certificates. Although similar to the existing method (3.2.2.2) “Validating control over mailbox via email”, ACME for S/MIME has been defined in a new method in order to better describe how a CA’s ACME server may respond to a POST request by sen...