Jim McIver wrote:
> I have Postfix 2.1 on Freebsd 4.10 and am having trouble blocking
> email from a domain.
>

Postfix 2.1 is ancient.  Recommend an upgrade as some things I mention
may require 2.2 or 2.3 or higher.
> Here is a snipet of the postqueue -p:
>
> DF6A927D       3512 Tue Mar  3 18:42:35  MAILER-DAEMON
> (connect to mx1.mail.yahoo.co.jp[124.83.183.240]: server dropped
> connection without sending the initial SMTP greeting)
>                                         megu0327_he...@yahoo.co.jp
>
>
You accepted this mail.  You need to find out WHY this
bounce/backscatter is occurring.
Check your mail log for DF6A927D.

>
> I would like to block the .co.jp so it doesn't pile up in postqueue.
>
> 2nd:
> I also receive over 400 messages daily from "u...@domain.com". The
> messages never go anywhere, they just pile up in the postqueue and I'd
> like to keep the postqueue -p cleaned out.
>
> Snippet from maillog:
>
> Mar  4 00:09:21 mail postfix/smtpd[36633]: NOQUEUE: reject: RCPT from
> unknown[89.218.164.251]: 554 <u...@domain.com>: Sender address
> rejected: Access denied; from=<u...@domain.com>
> to=<ob...@lmtribune.com> proto=SMTP helo=<89.218.164.251.metro.online.kz>
>
This message is rejected. It was not queued.

To block more, upgrade and use Zen (see site for usage restrictions)

grkni...@mx1 ~ $ host 251.164.218.89.zen.spamhaus.org
251.164.218.89.zen.spamhaus.org has address 127.0.0.11
251.164.218.89.zen.spamhaus.org has address 127.0.0.4

>
> In my sender_access and  I have:
> co.jp            REJECT
> u...@domain.com         REJECT
>
> In my access_client I have:
> co.jp            REJECT
>
> Output of postconf -n
> smtpd_client_restrictions = check_client_access
> hash:/usr/local/etc/postfix/client_access       permit
> smtpd_recipient_restrictions = permit_mynetworks       
> reject_unauth_destination       reject_invalid_hostname warn_if_reject
> reject_unknown_hostname   reject_unauth_pipelining       
> reject_non_fqdn_sender  reject_unknown_sender_domain    
> reject_non_fqdn_recipient       reject_unknown_recipient_domain
> warn_if_reject reject_unknown_client    
> reject_non_fqdn_hostname        check_client_access
> hash:/usr/local/etc/postfix/access_client   check_helo_access
> hash:/usr/local/etc/postfix/helo_access        check_sender_access
> hash:/usr/local/etc/postfix/sender_access    check_recipient_access
> hash:/usr/local/etc/postfix/recipient_access
> smtpd_sender_restrictions = check_sender_access
> hash:/usr/local/etc/postfix/sender_access
>
check_client_access expects a connecting IP match not a MAIL FROM match.

Brian

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