[roberto]

NNCP (http://www.nncpgo.org/) can be helpful here as well, in conjunction with the SQLite session extension.

[pdimitar]

Especially the combination of Syncthing and `nncp-xfer` is super useful. NNCP usually has strict routing which can be a hassle to guarantee (machine D only gets packets from machine A if they went through machine B and C first).

Using Syncthing as a central storage for NNCP packets circumvents the strict routing requirement.