email on root

I have all invalid email address for all domain go to the root mailbox

I will like that nobody receive these messages or the sender receive a error message

I have debian with postfix (maildir) and ispconfig 2.2.19

 

Add this to /etc/aliases:
root: /dev/null
Then run

Code:

newaliases
/etc/init.d/postfix restart

That's not a good idea because spammers use wrong sender addresses, so the error messages would reach the wrong people...

 

Thank's its 'ok for the root message

But how to disable this auto-reply error

"This Message was undeliverable due to the following reason:

Each of the following recipients was rejected by a remote mail server.
The reasons given by the server are included to help you determine why
each recipient was rejected.

Recipient: <toto@mydomain>
Reason: 5.1.1 <toto@mydomain>: Recipient address rejected: User unknown in local recipient table


Please reply to <[email protected]>
if you feel this message to be in error.
"