Note that I am not a Pan user, but the maintainer of the leafnode
open-source news proxy and cache software.

I keep getting user inquiries about Pan not working when leafnode is in
delaybody mode (which is technically detailed below).

The article and header caches are probably the cause of these
incompatibities, there seems to be no way to disable the cache altogether,
it insists on a minimum size of 1 MB and the "clear cache now" button that
used to be present in 0.13 has disappeared.

Note that it is insensible to have the newsreader cache articles if there
is a caching news server in the same LAN (even on the same machine), it's
just wastefully filling up all users' home directories.

Anyways, in delaybody mode, leafnode will offer a made-up article header
for download (that contains the information from XOVER only) and a made-up
body that states "article NNNNN marked for download".

When fetchnews, leafnode's NNTP client, has downloaded the bodies of the
marked articles, the articles will re-appear with the same Messsage-ID but
under a new article number. Header and Body will have to be re-downloaded. 

This is impossible, for some reason, even if I clear the article cache, Pan
refuses to download the new header (even though the old one is gone) and
clicking on the header, it says (rightfully so) that the article is
unavaible. Such a "no such article" response from the server should cause
Pan to purge the article header from the cache - but that doesn't happen.

Is it possible to support leafnode's delaybody mode in a future Pan version?

Thanks in advance.