Another question - what news client are the sensible people using nowadays? Is there one that
- doesn't put your domain name in the Message-ID (in fact, which maybe lets you choose the Message-ID),
- threads posts properly,
- makes it easy to let users post under a couple of different identities
- doesn't cost anything
- lets you add additional headers if you want, and
- doesn't under any circumstances look like Microsoft Explorer, or otherwise treat you as if you're an idiot?
Turnpike 5 is great but falls down on the first item in the above list, and also puts in an X-Newsreader: header, which I wouldn't mind if it only identified the news client, but it includes a serial number.
Michael