Can MailScanner do dkim/dk-milter?

[Dhawal Doshy]

Kai Wang wrote:
> 
> Greetings.
> 
> We run authenticated postfix+Mailscanner. I want to sign our out going 
> messages. Because we enforced authentication. I don't want to run 
> SpamAssassin. Is there a way to let MailScanner call dkim/dk-milter?

SpamAssasin can only verify (and not sign) DK/DKIM, so that is not an 
option. For outgoing messages, you'll have to write a custom function 
and call it via the 'Sign clean messages' in MailScanner.conf

The other option is doing it at the postfix level, see:
http://www.ijs.si/software/amavisd/amavisd-new-docs.html#dkim

In any case, the important point to remember is that DKIM adoption is 
not as widespread as the DK adoption yet! (though it is happening 
gradually).. and you'll be better off implementing both till DK is 
completely phased out..

- dhawal