On Fri, Mar 02, 2007 at 04:46:53PM +0700, Irvan wrote:
> Dear all,
> 
> Maap yah kalo pertanyaannya terlalu ecek-ecek. Bisa gak di postfix itu
> memblock satu buah email saja, sebut lah ada kasus email
> [EMAIL PROTECTED] yang selalu dikirim ke email [EMAIL PROTECTED]
> Nah user tersebut merasa terganggu dengan email dari si
> [EMAIL PROTECTED] itu.

Sebenarnya kail-nya sdh saya berikan ke Mas Irvan.
Iseng2 tadi saya coba dan berhasil, berikut ini sajian ikan bakarnya :-)

# pwd
/etc/postfix

# tail sender_checks
...
# We get lots of spam from example3.tld, but we have somebody
# there from which we do want to hear
[EMAIL PROTECTED]  OK
#example3.tld           REJECT
[EMAIL PROTECTED]      REJECT

# less main.cf
...
smtpd_recipient_restrictions =
   permit_sasl_authenticated,
   reject_non_fqdn_sender,
   reject_non_fqdn_recipient,
   reject_unknown_sender_domain,
   reject_unknown_recipient_domain,
   permit_mynetworks,
   reject_invalid_hostname,
   reject_non_fqdn_hostname,
   reject_unauth_destination,
   check_helo_access hash:/etc/postfix/helo_checks,
   check_sender_access hash:/etc/postfix/sender_checks,
   check_client_access hash:/etc/postfix/client_checks,
   reject_rbl_client relays.ordb.org,
   reject_rbl_client list.dsbl.org,
   reject_rbl_client sbl.spamhaus.org,
   reject_rbl_client cbl.abuseat.org,
   reject_rbl_client dul.dnsbl.sorbs.net,
   permit
...

# postmap sender_checks
# /etc/rc.d/rc.postfix reload

Ini saya tes di mesin lain dan beda network

[EMAIL PROTECTED]:~$ telnet mail.server.com 25
Trying 125.x.x.x...
Connected to x-x-x.speedy.telkom.net.id.
Escape character is '^]'.
220 mail.server.com ESMTP Postfix (2.2.10)
helo yahoo.com
250 mail.server.com
mail from:<[EMAIL PROTECTED]>
250 Ok
rcpt to:<[EMAIL PROTECTED]>
554 <[EMAIL PROTECTED]>: Sender address rejected: Access denied
quit
221 Bye
Connection closed by foreign host.


-- 

Terimakasih sebelumnya.

Salam,

~~ Arief Yudhawarman ~~


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