ref: a1a4ae4a53640eea33c76b41ecbbd7a091e019f8
dir: /sys/lib/tls/README/
By convention, the owner of a file here defines the policy for adding entries; please send email to request additions, so that some consistency can be maintained. Thus, the postmaster will maintain in /sys/lib/tls/mail the thumbprint, i.e. the SHA-1 checksum of the mail server's X.509 certificate, for services that are locally considered trusted for IMAPS. SEE ALSO okThumbprint(2) sha1sum(1) /public/certs