Re: Debugging [Was Re: Using KeyTable]

From: SM <>
Date: Wed, 26 May 2010 07:28:08 -0700

Hi Todd,
At 12:13 25-05-10, Todd Lyons wrote:
>Did some debugging. Sendmail must be changing it. This is the
>canonicalized Sender header that opendkim is signing:
>And this is the Sender header that is in the received email:
> Sender:

You have a CNAME for

>I have it set to "", whereas the machine hostname is
> (both are in the local-host-names w class file). So
>for some reason, sendmail is rewriting the Sender header that Mailman
>created (and signed) to the machine hostname. I do not have any kind
>of Masquerading or genericstable configured, so I am unsure why
>sendmail is doing that. To be more exact, I don't have any deep or
>meaningful experience with the Sender header specifically, so I am
>unsure if this is even expected behavior.

You can turn that sendmail feature off. The rewrite could still
occur at the verifier's end. I suggest using an "A" RR instead of the CNAME.

Received on Wed May 26 2010 - 14:29:43 PST

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