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Re: Challenge-Response as fallback

2004-01-06 14:59:29
Dan Boresjo wrote:

On Tuesday 06 January 2004 8:29 pm, R. Scott Perry wrote:

*Please* do not use C/R!


If you really need to reject joe-jobs, and the sending domain does not support SPF, how else do you suggest doing it? At least if you do the C/R check *after* checking for SPF, only non-SPF domains will get the C/R messages.
Another good reason to publish SPF records?

Exactly.  Maybe I'll add this to my challenge email:

If you're sick of people forging YOUR email address, get your system admin to use SPF (http://spf.pobox.com) and kiss forgery goodbye!

--
Jim Ramsay

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