News post headers. (Was: How to tell in site.py if python is being invoked interactively?)

[Alex]

> For news, you may want:
> 
> Mail-copies-to: [nobody|poster]

Hmm, I tried setting that, and posting to alt.test.  Gnus let me send a
reply.  I hope it's doing what it ought at your end.

Thanks.

Alex.