I do not realy understand the problem here ...
When a mail is send to a remote SMTP server, wrong addresses get
rejected with 550 ...
But that IS of course a Mail that returns to the send - it has the title
"Undelivered Mail Returned to Sender" and contains a message like
"Recipient address rejected: User unknown in local recipient table"
And, if i understand Gary correctly, he does not what such a mail - just
a silent drop ...
There are many mail servers out there, that are configured like this!
So, it´s valid questions and a valid configuration, IMHO!
