It's one.  You count the mechanisms and modifiers that cause DNS lookups.

Scott K

On Monday, April 29, 2013 05:24:08 PM Terry Zink wrote:
> So, suppose that a message arrives from [email protected] from the IP 1.2.3.4.
> The SPF lookups are:
> 
> example.com
> "v=spf1 include:example.net -all"
> 
> example.net
> "v=spf1 ip4:1.2.3.4 -all"
> 
> Does this count as 1 lookup (on example.com) or 2 lookups (on example.com
> and then on the include:example.net), or zero lookups (since the initial
> txt and include are excluded)?
> 
> -- Terry
> 
> 
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> Sent: Monday, April 29, 2013 9:56 AM
> To: Terry Zink; John Levine; [email protected]
> Subject: Re: [dmarc-discuss] microsoft.com invalid spf
> 
> My read of RFC 4408 is that the limit excludes the initial txt record
> lookup, and that the limit on includes is separate from the limit on "a"
> and "ptr" lookups.
> 
> --Bryan Costales
>   http://www.bcx.com
> 
>   >------------
>   >
>   > Quoting Terry Zink <[email protected]>
>   > Subject: Re: [dmarc-discuss] microsoft.com invalid spf
>   >
>   >------------
>   >
>   > I can help fix this.
>   > 
>   > -- Terry
>   > 
>   > 
>   > -----Original Message-----
>   > From: [email protected]
>   > [mailto:[email protected]] On Behalf Of John Levine
>   > Sent: Sunday, April 28, 2013 7:06 PM
>   > To: [email protected]
>   > Subject: Re: [dmarc-discuss] microsoft.com invalid spf
>   > 
>   > >>The SPF record described in that page bears no resemblance I can see
>   > >>to the actual one you find if you do a dig.
>   > >
>   > >I didn't check if it matched, but the one I got was permerror due too
>   > >many DNS lookups.  > 
>   > It's different, but I counted the lookups and you're right, it's at
>   > least 11.
>   > 
>   > R's,
>   > John
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