> > > Final-Recipient: rfc822;luser@rcptdomain.cl
> > > Action: failed
> > > Status: 5.0.0 (permanent failure)
> > > Remote-MTA: dns; [200.50.96.213]
> > > Diagnostic-Code: smtp; 5.1.0 - Unknown address error
> > > 553-'<myuser@mydomain.cl> unable to verify address' (delivery
> > > attempts: 0)