[PLUG] dkimproxy or dkim-milter ?

[Heath Morrison]

I prefer dkim-milter. The one caveat I can think of is that
dkim-milter supports only DKIM, not DomainKeys, and the last time I
checked Yahoo is still stubbornly recognizing DomainKeys signatures
only.

-Heath

On Tue, Jun 30, 2009 at 12:07 PM, Keith Lofstrom<keithl at kl-ic.com> wrote:
> I need to add outbound DKIM signing to my email, so yahoo will
> accept inbound email from my server.  I am using postfix 2.3.3
> and Scientific Linux 5 (an RHEL5 clone).  I send mail from half
> a dozen domains, and my DNS is split between my hosting provider
> (rimuhosting) and dyndns.com .
>
> DKIM signing uses the private keys on my outbound mail server
> to generate an SHA-256 cryptographic signature for the message
> body and header.  This is added to the header in the outbound
> mail.  The recipient verifies the mail using the public key in
> the DNS record for the domain.  I will set up one key pair for
> each domain.
>
> There are at least two tools out there for outbound verification:
>
> --- dkimproxy,  tutorial example at:
> http://anothersysadmin.wordpress.com/2008/01/16/domainkeysdkim-with-postfix/
>
> --- dkim-milter, tutorial example at:
> http://www.topdog.za.net/postfix_dkim_milter
>
> Does anybody have a preference between these two?  I am leaning
> towards the dkim-milter option, because there is an RPM package,
> the postfix configuration looks simpler, it is transportable to
> other mailing packages, and it does not depend so much on the
> integrity of underlying Perl modules.  But there may be hidden
> suckage that I don't know about, or other DKIM packages that
> come with free ice cream and ponies.
>
> Keith
>
> --
> Keith Lofstrom          keithl at keithl.com         Voice (503)-520-1993
> KLIC --- Keith Lofstrom Integrated Circuits --- "Your Ideas in Silicon"
> Design Contracting in Bipolar and CMOS - Analog, Digital, and Scan ICs
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