OpenAS2 is a java-based implementation of the EDIINT AS2 standard.
The current AS2 release version documentation is available here: http://openas2.sourceforge.net/
Additional Information Sources: https://sourceforge.net/p/openas2/wiki/Documentation/
Any donations to support the ongoing update and enhancement of the OpenAS2 project is gratfully accepted: https://paypal.me/openas2
Paid for professional consulting relating to OpenAS2 installation, troubleshooting and upgrades - click the "Send Message" here: https://sourceforge.net/u/uhurusurfa/profile/