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Re: IETF SMTP Working Group Proposal at smtpng.org

  • From: Brad Knowles
  • Date: Mon Aug 26 18:38:35 2002

At 3:26 PM +0100 2002/08/26, Martin Cooper wrote:

                  return nonrepudiated;
                  ^^^^^^^^^^^^^^^^^^^^

 OK - but unconditionally permitting null-return paths means that
 spammers can drive a coach and horses through the hole it leaves. :-(
IIRC, the RFCs require that you accept mail from the null envelope sender. Yes, it does open a hole, but spammers have avoided using this address for a long time, for reasons I still don't understand.

--
Brad Knowles, <brad.knowles@skynet.be>

"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
-Benjamin Franklin, Historical Review of Pennsylvania.

GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E W+++(--) N+ !w---
O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++)
tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)




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