SMTP-EDI
SMTP for EDI. See official source.
Definition
SMTP — Simple Mail Transfer Protocol (RFC 5321), email transport underlying AS1. Present in legacy EDI for unstandardised mail-based flows.
Origin
RFC 5321 (October 2008) consolidates accumulated evolutions since RFC 821 (1982). SMTP is the direct carrier of AS1 (RFC 3335) and of mail-based EDI deployments in healthcare, travel and public sector.
Use
When a partner mandates email transmission, the EDI engine wraps the payload in S/MIME and pushes it via authenticated SMTP + TLS, respecting DKIM and SPF to limit anti-spam false positives.