Hiya

To help reduce load on spamassasin/clamav i filtered off the recipents - pulling the emails from active directory and using;

relay_recipient_maps = hash:/etc/postfix/access
unknown_relay_recipient_reject_code = 554

smtpd_recipient_restriction =
permit_mynetworks,
check_relay_domains,
reject_non_fqdn_recipient,
reject_unknown_recipient_domain,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client sbl.spamhaus.org,
reject_rbl_client pbl.spamhaus.org

<--- example email --->

helo somen.com
250 mx1.XXXXX.com
mail from: <noone@ebay.com>
250 2.1.0 Ok
rcpt to: <nobody@XXXXXX.com>
550 5.1.1 <nobody@XXXXX.com>: Recipient address rejected: User unknown

I don't want the sender to be aware the email doesn't exist, I found 'show_user_unknown_table_name = no' - however this doesn't do as i wished. I'd like to drop the email but return a successful delivery.

Does anyone know how this can be accomplished in postfix?