Re: spoofing email addresses

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Open letter.

nsb@xxxxxxxxxxxxx (Nathaniel Borenstein) writes:
> ...
> However, you are right that my current laptop configuration is one of  
> many that won't work when Caller-ID or SPF records come into use for  
> the domain guppylake.com.  At that point, obviously, I will change my  
> laptop's configuration.  My sincere hope is that by the time that  
> happens, I will have a better option for smtp submission.  Blocking  
> port 25 will most assuredly *not* help that problem.  -- Nathaniel

Nathaniel, I would be honoured to have you as my SMTP_AUTH guest.  All
we need to do is exchange a login and password, and you'll become able
to configure your laptop to send all of its outbound e-mail through my
server here.  I can't promise to resist a subpoena of my mail logs, but
no power less than a subpoena would make your contributions to those mail
logs available to third parties.

The reason this is an open letter rather than a 1x1 conversation is that
we already have technology that will solve the problems SPF+CallerID will
cause, and we should certainly be using them rather than worrying about
those problems, and I am willing to help Nathaniel become a poster child
for "how outbound mail ought to be done".
-- 
Paul Vixie

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