Okay, there's a list available for testing on the new
Mailman3/HyperKitty server :
test-mailman3(a)lists.fedoraproject.org
You can subscribe to it via the admin interface (called Postorius):
https://lists.fedoraproject.org/admin/lists/test-mailman3@lists.fedorapro...
Please report any bug you can find, either in Postorius or in
HyperKitty. The bug tracker is on fedorahosted:
https://fedorahosted.org/hyperkitty/
Thaaaaanks ! :-)
Aurélien