Questions can be posted at the following mailing lists
End users of ELEON should register at following mailing list, in order to post questions
https://lists.iit.demokritos.gr/mailman/listinfo/eleon-users
Likewise developers should register at:
https://lists.iit.demokritos.gr/mailman/listinfo/eleon-dev
There is also an email account for requesting information: