The archives (going back to July 1998) are available for the getting using rsync.

Point your rsync client at ngwlist.com::ngwlist-archives.

For example:

# rsync ngwlist.com::
ngwlist-archives All the NGWList archive files (1 file per message, 100 per directory)
# rsync ngwlist.com::ngwlist-archives
drwxr-xr-x 12288 2006/09/21 17:46:41 .
drwxr-xr-x 4096 2006/09/21 17:24:43 0
drwxr-xr-x 4096 2006/09/21 17:24:43 1
drwxr-xr-x 4096 2006/09/21 17:24:44 10
drwxr-xr-x 4096 2006/09/21 17:24:52 100
drwxr-xr-x 4096 2006/09/21 17:24:52 101
drwxr-xr-x 4096 2006/09/21 17:24:52 102
drwxr-xr-x 4096 2006/09/21 17:24:52 103
drwxr-xr-x 4096 2006/09/21 17:24:52 104
drwxr-xr-x 4096 2006/09/21 17:24:52 105
drwxr-xr-x 4096 2006/09/21 17:24:52 106
drwxr-xr-x 4096 2006/09/21 17:24:52 107
drwxr-xr-x 4096 2006/09/21 17:24:52 108
drwxr-xr-x 4096 2006/09/21 17:24:52 109
drwxr-xr-x 4096 2006/09/21 17:24:44 11
drwxr-xr-x 4096 2006/09/21 17:24:53 110
....snip....


If you are going to mirror the archives to your own site, please don't sync more than twice a day.