Matus UHLAR - fantomas:
> reject_unlisted_recipient, of course:
>
> http://www.postfix.org/postconf.5.html#reject_unlisted_recipient
>
> reject_unlisted_recipient
> Reject the request when the RCPT TO address is not listed in the list of
> valid recipients for its domain class. See the
> smtpd_reject_unlisted_recipient parameter description for details. This
> feature is available in Postfix 2.1 and later.
To avoid DNSBL lookups for non-existent recipients, list
reject_unlisted_recipient before reject_rbl_* and reject_rhsbl_*.
Wietse
