I fingered mg5n+@andrew.cmu.edu and got this list:
remailer@chaos.bsu.edu Tue Jun 14 02:18:41 EDT 1994 + 0:00:34 nowhere@bsu-cs.bsu.edu Tue Jun 7 03:06:43 EDT 1994 error/mailbounce hal@alumni.caltech.edu Sun Jun 12 00:36:18 EDT 1994 no response catalyst@netcom.com Tue Jun 14 02:18:40 EDT 1994 + 0:01:32 anon@cyberspace.org Thu Jun 9 16:40:54 EDT 1994 error/mailbounce ghio@kaiwan.com Tue Jun 14 02:19:01 EDT 1994 + 0:02:30 hfinney@shell.portal.com Sun Jun 12 00:36:11 EDT 1994 no response remailer@rebma.mn.org Tue Jun 14 02:18:52 EDT 1994 + 2:51:28 rperkins@nyx.cs.du.edu Tue Jun 14 02:19:06 EDT 1994 + 0:00:34 remail@vox.hacktic.nl Tue Jun 14 02:18:57 EDT 1994 + 3:15:37 remailer@ds1.wu-wien.ac.at Tue Jun 14 02:19:05 EDT 1994 + 0:00:50
remail@extropia.wimsey.com Tue Jun 14 02:19:09 EDT 1994 + 0:20:35 remailer@soda.berkeley.edu Tue Jun 14 02:19:07 EDT 1994 + 2:18:38
Why so many remailers down???