On Tue, Nov 27, 2012 at 04:50:15PM +1100, Damien Gardner Jnr wrote: > And the thing is, the emails are being *accepted* - The SMTP spec is > very clear, that if a server accepts an email, then it must EITHER > return an NDN, or deliver it to the user. Everyone repeat after me: An RFC is not the same thing as a standard. - mark :-)