Jul 5, 2013 at 9:36 AM
is there a way to send a NDR to message sender? as if the email account doesn't exists...
Apr 23, 2014 at 5:04 AM
Isn't that what you would get if you simply don't install this agent? In that case the user does not exist, the address can't be found and the server will/should reject the message. Catchall isn't the solution for that problem. Recipient Filtering should be.

Is that right?