qmail rcptto allow filter

[Giancarlo De Menna]

Hi there, I'm trying to configure my server to answer "non existent user" or something at the rcptto level during a SMTP session with wrong addresses or non local usesrs in that field. I would like qmail to check the rcpt to email addrress before accepting the mail so as to avoid bandwidth consumption and heavy messages bouncing. I'm a novice of qmail but I can't immagine that this is not possible with this great program!   Giancarlo De Menna [EMAIL PROTECTED]