spf-discuss
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Re: Some thoughts about spam and SPF

2004-08-20 19:20:01
On Thu, Aug 19, 2004 at 10:32:28PM -0400, Scott Kitterman wrote:
| OK.  If I sign up and want to send e-mail from my domain, how do you
| determine if I'm an authorized user of that domain?  What prevents your
| other customers from forging my domain?  SMTP Auth says that I'm a customer
| of yours.  It doesn't, in and of itself, say what domains I'm authorized to
| send mail from.

consider pre-emptive SPF checks on outgoing mail :)