Re: Signing as domain.com AND mailer.domain.com?

From: Murray S. Kucherawy <msk_at_blackops.org>
Date: Wed, 13 Oct 2010 14:37:14 -0700 (PDT)

On Wed, 13 Oct 2010, Steve Jenkins wrote:
> Got a question about configuring so that I can send signed mail from the
> same server, but as either sender_at_domain.com and
> sender_at_mailer.domain.com.
>
> For corporate mail, we want to be able to just send signed mail as
> sender_at_domain.com. That's working fine, and the return path on test
> mail is sender_at_domain.com.
>
> For newsletters, we want to send from sender_at_mailer.domain.com. [...]

By default, selection is based on the address found in the From: field.
Are you able to change that? If not, you can use SenderHeader to tell it
from which header field to take the address to be used to make the signing
decision.

After that all you need to do is set up the SigningTable with rules to
match, and you should be good to go.

You'd need to set up the TXT record to be inside both
_domainkey.domain.com and _domainkey.mailer.domain.com, matching their
respective private keys (if different). If they're the same, one can just
be an alias for the other.

Does that cover it?

-MSK
Received on Wed Oct 13 2010 - 21:37:34 PST