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List:       exim-users
Subject:    Re: [exim] DKIM and/or DomainKeys
From:       Ian Eiloart <iane () sussex ! ac ! uk>
Date:       2008-10-30 10:47:54
Message-ID: E9CC6F4679D8033535E1775F () lewes ! staff ! uscs ! susx ! ac ! uk
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--On 29 October 2008 10:31:16 -0700 Dan_Mitton@YMP.GOV wrote:

> Is anyone out there using DKIM and/or DomainKeys in either a signing
> and/or verifying mode?
>
> I am specifically trying to deal with yahoo.com mail/spam, but it seems
> like yahoo.com's own domainkey policy is that they are still in testing
> "t=y" and they don't sign all messages "o=~", so what is there to do?

About the only thing you can usefully do here is to whitelist known 
correspondents, when their mail carries a valid signature. The *could* be a 
useful tool in a .gov environment, depending on the nature of your problem.

>  Do I have this right or am I missing something?  Another sender that 
does
> DomainKeys is cisco.com, but it seems like cisco.com doesn't have a
> policy  record, no _domainkey.cisco.com ??
>
> Any help or insight would be greatly appreciated.
>
> Thanks,
>
> Dan



-- 
Ian Eiloart
IT Services, University of Sussex
x3148

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