In December 2017, a joint coding meeting was held in Athens attended by PANORAMIX partners CCT, Greenhost and GRNET to work on the mix network infrastructure for e-mail.
The objective of the meeting was to increase the productivity of the programming and co-ordination between partners in WP7, and GRNET attended the meeting to focus on the integration of the generic mix-net API from WP4.
A good write-up of the meeting by Meskio (Greenhost/LEAP) can be found here.
For further info also see:
Katzenpost website: https://katzenpost.mixnetworks.org
Code: https://github.com/katzenpost