PGP-encrypt your WHMCS email
Postern PGP Mailer is a WHMCS add-on that automatically PGP-encrypts your outbound WHMCS email
Postern PGP Mailer adds true end-to-end OpenPGP
encryption to your WHMCS outbound email. It sits in the mail transport
path and automatically encrypts each message to recipients whose public
key is known or discoverable — invoices, password resets, support
replies and custom emails alike — while everyone else still receives
normal mail. No per-message effort, no workflow changes.
