Most of the configuration for spf is done in DNS, not qmail. Go to
http://spf.pobox.com/ and use their wizard to generate rules.

The Qmail configuration is basically one file: /var/qmail/control/spfbehavior

More info available here: http://www.saout.de/misc/spf/
spfbehavior
    Use this to turn on SPF checking. The default value is 0 (off).
    You can specify a value between 0 and 6:

        * 0: Never do SPF lookups, don't create Received-SPF headers
        * 1: Only create Received-SPF headers, never block
        * 2: Use temporary errors when you have DNS lookup problems
        * 3: Reject mails when SPF resolves to fail (deny)
        * 4: Reject mails when SPF resolves to softfail
        * 5: Reject mails when SPF resolves to neutral
        * 6: Reject mails when SPF does not resolve to pass

    Values bigger than 3 are strongly discouraged, you probably want
to go with 2 or 3.
    Important: This setting can be overridden using the environment
variable SPFBEHAVIOR, e.g. from tcpserver rules.
    Note: If RELAYCLIENT is set, SPF checks won't run at all.
    (This also includes SMTP-AUTH and similar patches)

On 9/11/05, Ron Jones <[EMAIL PROTECTED]> wrote:
>  
> I read somewhere on the Qmailtoaster.com website that the toaster has
> built-in support for the SPF setup.  Has anyone configured it?  How is it
> done? 
>   
> Thanks, 
>   
>  
> 
> Ron Jones 
> 
> The Fulcrum Technology Group, Inc
> Tel: 678.921.0318
> Cell: 770.378.3647
> 585 Creek Landing Lane
> Alpharetta, GA 30005 
> 
> www.tftgi.com 
> 
> Get Discounted T1 Service Here 
>

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