Within the Apache Directory-Project, the subproject MINA ( Multipurpose Infrastructure for Network Applications ) provides a network application framework which helps users develop high performance and high scalability network applications easily.
The framework enables users to write an implementation of a network API and provides an option to include a IoFilter and a ProtocolFilter.
The latter might be a usefull feature to implement the
JAMES-355 feautre request.
It would required rewriting the org.apache.james.smtpserver.SMTPHandler.
Since the current version ( Revision: 164634 ) still is dependant on the avalon-framework, this rewritting is something that should be done anyhow.