I am trying to get DKIM working with Smartermail.  The problem is we have an outbound proxy setup with Mailchannels.  When this is enabled the DKIM does not work.  Now we have cPanel servers that send out through Mailchannels and pass DKIM without any issues.  Smartermail works with DKIM when the proxy is disabled.  Exim has a setting where we add in to send in the DKIM details for the proxy.  I do not see any settings in Smartermail for this.  Is there a way to setup DKIM while using a gateway in Smartermail?