NNTP2NNTP is a simple and pretty fast NNTP proxy server
NNTP2NNTP Proxy allow you to use your NNTP Account from multiple systems, each with own user name and password. It fully supports SSL and you can also limit the access to proxy with SSL certificates. NNTP2NNTP Proxy is very simple and pretty fast.
An nntp uploader is also included.
NatoNews is an NNTP proxy server written in C# that caches all messages into a database for quick subsequent retrieval. It ultimately aims to be platform independent, NNTP client independent, database independent and have an ASP.net search front-end.
The MSN Compatibility Daemon allows the use of any mail and news software on servers requiring the Microsoft Secure Password Authentication Protocol. It handles the authentication and then serves as a proxy between the server and the client software.