spf-discuss
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Re: The Case For XML in "Caller-ID for Email"

2004-01-24 20:59:30
On Sat, Jan 24, 2004 at 10:49:04PM -0500, Philip Gladstone wrote:
| I think that the idea is (if you control your own DNSBL) is rather than 
| using    exists:%{ir}.my.dnsbl
| you use
|        include:%{ir}.spf-my.dnsbl
| 
| where the returned record is either 'v=spf1 +all' or 'v=spf1 -all'
| 
| The first returned record will trigger a match on the include, and the 
| second will not. Both will get cached by the DNS infrastructure.

yeah, but then the problem is spammers will start spamming from
4.3.2.1.spf-my.dnsbl, which is why maybe we should put in a requirement
that mail never be sent from a host with an underscore in its name
... ick.

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