What is AS4?
AS4 is a secure web-services messaging protocol used for reliable B2B document exchange. It supports signing, encryption, receipts, retries, and standardised partner interoperability.
AS4 / Domibus
Secure B2B messaging implementation with Domibus.
Technical support for AS4 access points, eDelivery integrations, PMode configuration, certificates, interoperability testing, and production readiness.
What is Domibus?
Domibus is an open-source AS4 access point implementation used in eDelivery ecosystems. It handles message packaging, security, PMode-based routing, and partner exchange.
Who needs this
Teams that need secure, auditable partner exchange.
Useful for public-sector integrations, regulated B2B messaging, eDelivery networks, and organisations onboarding partners to AS4.
Implementation
- Domibus installation and configuration
- Environment and database setup
- Plugin and backend integration planning
Security setup
- Certificate and PKI setup
- Signing and encryption validation
- Truststore and keystore troubleshooting
Partner readiness
- PMode configuration
- Partner onboarding
- Testing, monitoring, retry/error handling
Delivery scope
From first access point to stable production operations.
PMode configuration
Define parties, services, actions, agreements, security policies, reliability settings, and routes.
Testing and troubleshooting
Investigate message status, payload packaging, receipts, certificate chains, logs, and interoperability issues.
Monitoring and hardening
Create runbooks, alerting requirements, backup considerations, retry policies, and operational documentation.
Next step
Need help with AS4 or Domibus?
Get practical help with setup, configuration, partner onboarding, troubleshooting, and production hardening.