Some of you know the sender of the below message, please don't blow my cover, I'm testing the remailers and people's knowledge of message id's (if that would even be an accurate way of tracing the message). Cypherpunks remailer addresses and headers from those sites appear below. If you can trace the origin (sender) of this message please send me mail personally rather than to the list. I'm using my favorite remailer here and I want to make sure it's working right. I have sent mail to the below sites as a test for anonymous remailing returns and to see what headers I get back. It has been maybe 4 days now since I began this experiment, some of the sites below have still not remailed my test message. My main curiosity in this quest is to determine what each header will look like when the mail is recieved. I think this is important in determining which remailer to use. The below is the list of remailers with the "unique header to remailer" info below each site number. If you wish to discuss this matter further, please send a follow up message to the cypher list with your address included and "Re: Unique header". I'm really not too concerned about remaining anonymous, I just want to see if this scheme is really airtight! Thanks! -z A typical mail header looks similar to the below: (I have removed the date, time, etc. to protect my privacy)

From rebma!remailer@kksys.mn.org Thu Jul x 00:38:01 1993 Received: by ahost.some.school.edu (5.57/Ultrix3.0/cc-ix.mc-1.5) id AA02491; Thu, x Jul 93 19:00:54 -0500 Received: from kksys.mn.org by uum1.mn.org with bsmtp (Smail3.1.28.1 #3) id m0oE6Du-00007JC; Thu,x Jul 93 00:21 CDT Received: from rebma by kksys.mn.org with uucp (Smail3.1.28.1 #13) id m0oE5jG-0007TsC; Thu,x Jul 93 00:50 CDT Received: by rebma.rebma.mn.org (Smail3.1.28.1 #1) id m0oE6nS-0002CzC; Thu, 8 Jul 93 17:58 PDT Message-Id: <m0oE6nS-0002CzC@rebma.rebma.mn.org> Date: Thu, x Jul 93 17:58 PDT To: me@myhost.some.school.edu From: nobody@rebma.rebma.mn.org Subject: 9 Remailed-By: Mr. Nobody <remailer@rebma.mn.org> Status: O

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Check out the pub/cypherpunks directory at soda.berkeley.edu (128.32.149.19). Instructions on how to use the remailers are in the remailer directory, along with some unix scripts and dos batch files. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ =========This is where the list of remailers and headers begins=========== *** Please keep in mind that in the below I included only the "unique to *** remailer" parts of the header.*** 1: nowhere@bsu-cs.bsu.edu From: Anonymous <nowhere@bsu-cs.bsu.edu> To: omitted X-Remailed-By: Anonymous <nowhere@bsu-cs.bsu.edu> X-Ttl: 0 X-Notice: This message was forwarded by a software- automated anonymous remailing service. 2: hh@cicada.berkeley.edu From: nobody@cicada.berkeley.edu 3: hh@pmantis.berkeley.edu No response after 4 days 4: hh@soda.berkeley.edu From: nobody@soda.berkeley.edu Remailed-By: Eric Hollander <hh@soda.berkeley.edu> 5: 00x@uclink.berkeley.edu From: nobody@uclink.berkeley.edu Remailed-By: Tommy the Tourist <tommy@out> 6: hal@alumni.caltech.edu From: nobody@alumni.cco.caltech.edu Comments: This message is NOT from the person listed in the From line. It is from an automated software remailing service operating at that address. Please report problem mail to <hal@alumni.caltech.edu>. 7: ebrandt@jarthur.claremont.edu From: nobody@eli-remailer Remailed-By: Eli Brandt <ebrandt@jarthur.Claremont.EDU> Source-Info: From (or Sender) name not authenticated. 8: phantom@mead.u.washington.edu No response after 4 days 9: remailer@rebma.mn.org From: nobody@rebma.rebma.mn.org Remailed-By: Mr. Nobody <remailer@rebma.mn.org> ** The reamiler at rebma.mn.org took 3+ days to remail. This could be an advantage to some, disadvantage to others. You decide. 10: elee7h5@rosebud.ee.uh.edu From: nobody@rosebud.ee.uh.edu 11: hfinney@shell.portal.com From: nobody@shell.portal.com Comments: This message is NOT from the person listed in the From line. It is from an automated software remailing service operating at that address. Please report problem mail to <hfinney@shell.portal.com>. 12: remail@tamsun.tamu.edu From: remail@tamsun.tamu.edu Remailed-By: Anonymous <remail@tamsun.tamu.edu> 13: remail@tamaix.tamu.edu From: remail@tamsun.tamu.edu Remailed-By: Anonymous <remail@tamsun.tamu.edu> 14: remailer@utter.dis.org Received: by soda.berkeley.edu (5.65/KAOS-1) id AA13859; Tue, 6 Jul 93 03:09:09 -0700 Received: by merde.dis.org (4.1/SMI-4.2) id AA04354; Tue, 6 Jul 93 03:11:48 PDT From: nobody@dis.org Remailed-By: remailer bogus account <remailer@utter.dis.org> 15: remail@extropia.wimsey.com No response ever! ...unless you use encryption. Details will follow in the near future. NOTES: #1-#5 no encryption of remailing requests #6-#14 support encrypted remailing requests #15 special - header and message must be encrypted together #9,#14,#15 introduce larger than average delay (not direct connect) #9,#14,#15 running on privately owned machines