On Mon, Aug 28, 2006 at 07:02:40PM -0400, Matt Sergeant wrote:
> On 28-Aug-06, at 6:45 PM, Peter J. Holzer wrote:
> >Check if the same message has already been received in the last n
> >hours
> >(a combination of message-id, sender and recipients should be
> >sufficient). If it is a duplicate, reject with an appropriate message
> >("550 You already sent me that message" or something like that).
> Nice idea (procmail has something that does this) but unfortunately
> that means the end user gets a 5xx error message.
Then send a 250 but don't queue it.
