[81754] in North American Network Operators' Group
Re: ISP phishing
daemon@ATHENA.MIT.EDU (Tony Finch)
Wed Jun 29 05:58:49 2005
Date: Wed, 29 Jun 2005 10:58:16 +0100
From: Tony Finch <dot@dotat.at>
To: Brad Knowles <brad@stop.mail-abuse.org>
Cc: Paul Wouters <paul@xtdnet.nl>, nanog@merit.edu
In-Reply-To: <p06200746bee7f378bd6d@[192.168.1.101]>
Errors-To: owner-nanog@merit.edu
On Wed, 29 Jun 2005, Brad Knowles wrote:
>
> SPF is not a panacea.
>
> In fact, it is pretty much totally worthless, unless you are the sole
> owner of a given domain and you can guarantee that all mail you ever send will
> always be routed through the machines that you own and control, and you know
> that you don't ever forward e-mail for any of your other accounts.
Actually, what you have to guarantee is that you never send email to
anyone who forwards their email elsewhere. This is impossible.
Tony.
--
f.a.n.finch <dot@dotat.at> http://dotat.at/
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