Applicability Statement 2
The AS2 profile of eDelivery is based on Applicability Statement 2. AS2 was chosen by PEPPOL because of its popularity among EDI Service Providers.
Files are encoded as attachments in a standardised S/MIME message (an AS2 message).
Definition from https://ec.europa.eu/cefdigital/wiki/display/CEFDIGITAL/CEF+Glossary
