[51117] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

RE: IETF SMTP Working Group Proposal at smtpng.org

daemon@ATHENA.MIT.EDU (Robert Blayzor)
Wed Aug 21 10:30:07 2002

From: "Robert Blayzor" <rblayzor@inoc.net>
To: <nanog@nanog.org>
Date: Wed, 21 Aug 2002 10:29:28 -0400
In-Reply-To: <20020821100002.B15404@sec.sprint.net>
Errors-To: owner-nanog-outgoing@merit.edu


>  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.

It's almost to the point to where mail servers need their own
"registrar", sort of the way domains are tracked now, track mail
servers.  Give mail server admins the option to accept mail from
registered mail servers only or from any mail server.  Of course there
would need to be a ramp up period, like six months to a year, to make
sure all of your mail servers are registered.  And of course one should
only be able to register mail servers if the IP space is actually SWIP
to them.  If the IP space is NOT SWIP, it would need to be registered by
the customer ISP or via owners rwhois server.  Just my $.02; for what
it's worth.... 

--
Robert Blayzor, BOFH
INOC, LLC
rblayzor@inoc.net

When all else fails, let a = 7.  If that doesn't help, then read the
manual.


home help back first fref pref prev next nref lref last post