Reject mail sent to unexistant domain

[simoryl]

Hi !

Coz' spam flood, i configure Plesk for reject mail for unexistant mail user. It work well.

But now, i suffer another spam flood : alot of spam is send to unexistant user of unexistant domain name... And Qmail queue is rapidly full (more than 2500 mails per day blocked in qmail queue!)

So i want my server directly reject mail for unexistant domain like for unexistant user.

I find this in the forum :

1. Setup an account called [email protected] in Plesk (with a mailbox.
2. Create a file doublebounceto in /var/control/ with just "doublebounce" in it (no quotes).
3. Create a file doublebouncehost in /var/control/ with just "domain.com" in it.
4. Edit the file /var/qmail/control/domain.com/doublebounce/.qmail and add the line: "| cat > /dev/null" (again no quotes).

Restart qmail and you should be catching doublebounce messages there.

But this solution doesn't work... I always receive a failure notice when i send a mail to an unexistant domain.

Can you help me please?

Thks

Simo'

PS : excuse me for my bad english... I'm really sorry...