I would think that SPF would be fairly easy to implement. There are 
libraries available (http://www.openspf.org/Implementations).

I'm just looking at this as a more secure (and lazy) way to whitelist a 
domain. ;)

Is there something I can do to help move this along?

Sam Clippinger wrote:
> I don't see why this can't be done.  Once SPF support is added, it 
> should be pretty trivial to add a flag to control what spamdyke does 
> with it.
> 
> -- Sam Clippinger
> 
> Eric Shubert wrote:
>> Eric Shubert wrote:
>>   
>>> Hey Sam (et al),
>>>
>>> I just came across a situation where I wanted to whitelist a vendor 
>>> (dyndns.com), so I requested their rDNS names. They cordially replied 
>>> that they use various servers, and gave me their SPF record as 
>>> reference. Then a little light went on. Spamdyke could do this for me.
>>>
>>> How about a spf-whitelist option, similar to the other whitelist 
>>> options, that would read the SPF record for the sending domain and 
>>> automatically whitelist according to the SPF rules found. This would 
>>> effectively say, "whitelist whatever servers are listed in the domain's 
>>> SPF record - I'll trust their SPF record".
>>>
>>> I know this isn't trivial because of the variety of ways that senders 
>>> can be specified in SPF, but I think the feature would be very useful.
>>>
>>> I would guess that most users would want to implement this only for 
>>> certain domains. I'm not sure if turning it on globally would be ok to 
>>> do or not. I'm thinking probably no, but it might be a nice option for some.
>>>
>>> Thoughts?
>>>
>>>     
>> I know you have SPF listed under TODO LATER in TODO.txt, but it's listed 
>> along with some other schemes which I believe are more involved to fully 
>> implement. I see this more of an enhancement of spamdyke's whitelisting 
>> capabilities than an outright SPF implementation. FWIW.
>>
>>   


-- 
-Eric 'shubes'

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