spf-discuss
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Re: Implementation questions

2003-11-15 20:36:44
An IP can have multiple PTR records - there's nothing wrong with this.

On Thu, Nov 13, 2003 at 10:55:35 +0000, Dan Boresjo wrote:
The PTR section is really confusing. Am I supposed to do a PTR lookup of the 
IP at in-addr.arpa, or somewhere else? I thought the in-addr.arpa mappings 
were supposed to be one-to-one? Are there any examples of one-to-many 
mappings there at present? Could a malicious domain do this?

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