On Mon, 2012-01-02 at 12:49 -0700, The Doctor wrote: > The only way to detect this is the set up outbound spam
> detection to protect your reputation.
No it isn't. Think laterally.
Regardless of whether you think mail is inbound or outbound, you need to
think like an MTA.
You do spam detection when the MTA *receives* the email, that is
_inbound_ to the MTA.
Right now you will have an exclusion on spam checking for submitted,
authenticated or locally-injected messages. It is this restriction which
needs to be lifted.
That said, *how* you lift it depends upon your configuration, and how
the messages are submitted to your MTA.