Where is PQC used? End-to-end or SMTP over TLS (hop-by-hop)? If it is end-to-end, can you easily export a user's public key so they can share it with others?
Instead of traditional public key export, we built a simplified system where users can verify each other by exchanging a short code. Under the hood, that code represents a secure identity binding. Effectively a user-friendly way to share public keys and establish trust.
For messages leaving Secria, we fall back to SMTP over TLS, since most of the email world isn’t PQC-ready yet.
We do plan to add traditional public key export as an option for users who want to integrate with other systems but the core trust model is already live via our code-swap mechanism.