1997-07-03 - ISP signatures on outgoing mail

Header Data

From: nobody@REPLAY.COM (Anonymous)
To: cypherpunks@cyberpass.net
Message Hash: b2fc2d079ae2458d56e2d528e9bdc3543c4b81cddcc75ddfec51b25b36e6e62b
Message ID: <199707031614.SAA27700@basement.replay.com>
Reply To: N/A
UTC Datetime: 1997-07-03 16:41:34 UTC
Raw Date: Fri, 4 Jul 1997 00:41:34 +0800

Raw message

From: nobody@REPLAY.COM (Anonymous)
Date: Fri, 4 Jul 1997 00:41:34 +0800
To: cypherpunks@cyberpass.net
Subject: ISP signatures on outgoing mail
Message-ID: <199707031614.SAA27700@basement.replay.com>
MIME-Version: 1.0
Content-Type: text/plain



Anyone heard of a proposal for ISPs to automatically sign outgoing
mail headers?  Problem has been that spammers send email by one
path but forge a reply-to or from address at another location.  Most
recent case is hotmail, which got blocked by netcom over a spam attack.
Actually mail didn't come from hotmail, was forged to look like it came
from there.  Same thing has happened to remailers.

They need a standard for which headers to sign, then a dig sig can be
included in the headers to check that a message came from where it
claims.






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