Postfix拒绝未知的本地收件人

我有一个反向散射的问题。 垃圾邮件发送者将邮件发送到我的服务器上不存在的用户名@域名。 我正在尝试中止会话，而不是将退回消息发送回伪造的发件人地址。 我尝试添加reject_unverified_recipient，但似乎没有工作。

当我检查mailq，我可以看到许多坚持“用户不存在”从MAILER_DAEMON电子邮件反弹到不存在的收件人。

这是我的postconf -n

append_dot_mydomain = no biff = no broken_sasl_auth_clients = yes config_directory = /etc/postfix dovecot_destination_recipient_limit = 1 inet_interfaces = all inet_protocols = ipv4 mailbox_size_limit = 0 message_size_limit = 102400000 milter_default_action = accept milter_protocol = 2 mydestination = localhost myhostname = domain.com mynetworks = 127.0.0.0/8 non_smtpd_milters = inet:localhost:8891 readme_directory = no recipient_delimiter = + relay_domains = relayhost = resolve_numeric_domain = yes smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_milters = inet:localhost:8891 smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_unknown_recipient_domain, reject_unverified_recipient, permit_auth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous smtpd_sasl_tls_security_options = noanonymous smtpd_sasl_type = dovecot smtpd_tls_CAfile = /etc/ssl/certs/domain.com.chain.crt smtpd_tls_cert_file = /etc/ssl/certs/domain.com.crt smtpd_tls_key_file = /etc/ssl/private/domain.com.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes virtual_alias_domains = mysql:/etc/postfix/sqlconf/virtual_alias_domains.cf virtual_alias_maps = mysql:/etc/postfix/sqlconf/virtual_mailbox_maps.cf virtual_mailbox_domains = mysql:/etc/postfix/sqlconf/mydestination.cf virtual_transport = dovecot 

这是master.cf文件

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 smtp inet n - - - - smtpd -o content_filter=spamassassin -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters smtps inet n - - - - smtpd -o content_filter=checkhook -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes dovecot unix - nn - - pipe flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -f ${sender} -d ${recipient} pickup unix n - - 60 1 pickup cleanup unix n - - - 0 cleanup qmgr unix n - n 300 1 qmgr #qmgr unix n - n 300 1 oqmgr tlsmgr unix - - - 1000? 1 tlsmgr rewrite unix - - - - - trivial-rewrite bounce unix - - - - 0 bounce defer unix - - - - 0 bounce trace unix - - - - 0 bounce verify unix - - - - 1 verify flush unix n - - 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - - - - smtp relay unix - - - - - smtp showq unix n - - - - showq error unix - - - - - error retry unix - - - - - error discard unix - - - - - discard local unix - nn - - local virtual unix - nn - - virtual lmtp unix - - - - - lmtp anvil unix - - - - 1 anvil scache unix - - - - 1 scache maildrop unix - nn - - pipe flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient} uucp unix - nn - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) ifmail unix - nn - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - nn - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient scalemail-backend unix - nn - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} mailman unix - nn - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} spamassassin unix - nn - - pipe user=spamfilter argv=/usr/bin/spamc -f -e /usr/sbin/sendmail -oi -f ${sender} ${recipient} checkhook unix - nn - - pipe user=www-data argv=/etc/postfix/scripts/send ${sender} ${recipient} 

以下是我尝试发送给无效的本地收件人时所做的一些日志。

 Jan 22 19:09:34 ip-12345 postfix/qmgr[19938]: CF96B20013B: from=<[email protected]>, size=249, nrcpt=1 (queue active) Jan 22 19:09:35 ip-12345 postfix/pickup[19939]: 982D320013D: uid=5007 from=<[email protected]> Jan 22 19:09:35 ip-12345 postfix/pipe[21485]: CF96B20013B: to=<[email protected]>, relay=spamassassin, delay=18, delays=16/0/0/1.2, dsn=2.0.0, status=sent (delivered via spamassassin service) Jan 22 19:09:35 ip-12345 postfix/qmgr[19938]: CF96B20013B: removed Jan 22 19:09:35 ip-12345 postfix/cleanup[21477]: 982D320013D: message-id=<[email protected]> Jan 22 19:09:35 ip-12345 postfix/qmgr[19938]: 982D320013D: from=<[email protected]>, size=1333, nrcpt=1 (queue active) Jan 22 19:09:35 ip-12345 dovecot: auth: Debug: master in: USER#0111#[email protected]#011service=lda Jan 22 19:09:35 ip-12345 dovecot: auth-worker(14636): Debug: sql([email protected]): SELECT '/var/vmail/[email protected]' as home, 'vmail' as uid, 'vmail' as gid, concat('*:storage=', quota_kb) AS quota_rule, concat('*:messages=', quota_msg) AS quota_rule2 FROM users WHERE username = 'nonexistentx' AND domain = 'localdomain.com' and active=1 Jan 22 19:09:35 ip-12345 dovecot: auth-worker(14636): sql([email protected]): unknown user Jan 22 19:09:35 ip-12345 dovecot: auth: Debug: userdb out: NOTFOUND#0111 Jan 22 19:09:35 ip-12345 postfix/pipe[21400]: 982D320013D: to=<[email protected]>, relay=dovecot, delay=0.07, delays=0.05/0/0/0.02, dsn=5.1.1, status=bounced (user unknown) Jan 22 19:09:35 ip-12345 postfix/cleanup[21396]: A8B0720013C: message-id=<[email protected]> Jan 22 19:09:35 ip-12345 postfix/bounce[21474]: 982D320013D: sender non-delivery notification: A8B0720013C Jan 22 19:09:35 ip-12345 postfix/qmgr[19938]: A8B0720013C: from=<>, size=3394, nrcpt=1 (queue active) Jan 22 19:09:35 ip-12345 postfix/qmgr[19938]: 982D320013D: removed Jan 22 19:09:35 ip-12345 postfix/smtp[21496]: A8B0720013C: to=<[email protected]>, relay=none, delay=0.03, delays=0/0.01/0.02/0, dsn=5.4.4, status=bounced (Host or domain name not found. Name service error for name=sender.ocm type=A: Host not found) Jan 22 19:09:35 ip-12345 postfix/qmgr[19938]: A8B0720013C: removed 

 bounce unix - - - - 0 discard