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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: IETF SMTP Working Group Proposal at smtpng.org
On Wed, Aug 21, 2002 at 10:53:19AM -0400, Ron da Silva wrote: > > I'd like to be able to publish DNS records announcing my domain's *outbound* > > mail servers, with nice abbreviated forms to say "they're the same as my > > inbound (MX) records" or "any IP in x.y.z/24". Then cooperative ISPs (like say > > America Online) could refuse any email from my domain that originated from some > > random cable modem, instead of accepting it and then flooding me with 20000 > > bounce messages. > > What about this email from you which came to me from Merit and not your > mail server? Would break mailing lists and listserves unless the from > field is overwritten. No, because a mailer doesn't look at headers - it looks at the SMTP envelope, and mailinglists set this to point to an address of themselves to monitor bounces. Greetz, Peter -- MegaBIT - open air networking event - http://www.megabit.nl/
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