* Benoit Panizzon panizzon@woody.ch:
Isn't there any way to make exchange reject unknown users during smtp handshake like all other MTA do?
Of course there is:
Go into ESM, Global Settings, "Nachrichtenübermittlung", "Empfängerfilterung" and check the "Empfänger filtern, die nicht im Verzeichnis vorhanden sind".
This is a more sensible approach than killing all NDRs (Exch Speak for "Bounces").
HTH,
Lukas