I am looking for good newsreader (NNTP) program, which 1) is preferrably free, 2) allows me to see older posts, not just latest, 3) can download posts for offline reading, 4) has good indexing/searching capabilities, 5) downloads new posts in interesting threads automatically, but doesn't download posts from ignored threads.
I started with Thunderbird, as that's what I use for email, but I don't know how to get to older posts in Thunderbird.
I don't need handling of binary data, archives, etc. Just regular newsreader.
Which newsreader software do you prefer?