It features :

• Multi-threaded multi-client
• Access limitation by IP
• per ip connections limit
• plugin based data filters :
• logging
• NNTP AUTH rewriting

Few usefull links :

• Take a look at all the avaible downloads
• how-to use jackyrelay and it's plugins.
• my BLOG
• use the issue tracker to submit bugs or ask for features.
• If you can't use the tracker my mail is mir@freecontrib.org