On Mon, Dec 01, 2003 at 05:14:58PM -0500, Meng Weng Wong wrote:
| As both of you pointed out, a bounce like that will typically affect the
| joe-jobbed "victim". Indeed, that is actually most unwanted. But a plane
| DISCARD is quite undesireable too.
What bounce?
Who's the client?
Server: Server doing SPF-lookups.
Client: spammer, virus.
Abuse : client forging return-path with an address for a SPF-protected domain.
If the server sends a 550 and that's it, no problem.
But if the server generates a bounce because of the forgery, it will be send
to the forged address. This is useful during migrations in case it's not a
forgery but a migration issue. But once SPF settles in, it will only be
inconvenient if servers send bounces for detected forgeries.
Rob
--
Rob Kaper | "In the name of sheer pity, won't someone operate on
cap(_at_)capsi(_dot_)com | Chairman Arafat and put that poor cancer into a
cleaner
www.capsi.com | environment? -- Rick Brookhiser
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