I'm on Centos 6.5 with Postfix/Dovecot and some virtual domains.

Postfix works fine, but I've got a lot of messages like this "NOQUEUE: reject: RCPT from 1-160-127-12.dynamic.hinet.net[1.160.127.12]: 454 4.7.1 : Relay access denied; from= to= proto=SMTP" in my maillog.

I've tried to close port 25 with iptables, when I do so - I got no such messages, but my mail system starts work incorrectly and can't receive mail from other hosts.

Please help!

My postconf -n:

    alias_database = $alias_maps
    alias_maps = hash:/etc/postfix/aliases
    broken_sasl_auth_clients = yes
    command_directory = /usr/sbin
    config_directory = /etc/postfix
    daemon_directory = /usr/libexec/postfix
    data_directory = /var/lib/postfix
    debug_peer_level = 2
    html_directory = no
    inet_interfaces = all
    inet_protocols = ipv4
    mail_owner = postfix
    mailq_path = /usr/bin/mailq.postfix
    manpage_directory = /usr/share/man
    message_size_limit = 20971520
    mydestination = localhost.$mydomain, localhost
    newaliases_path = /usr/bin/newaliases.postfix
    queue_directory = /var/spool/postfix
    readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES
    relay_domains = *
    sample_directory = /usr/share/doc/postfix-2.6.6/samples
    sendmail_path = /usr/sbin/sendmail.postfix
    setgid_group = postdrop
    smtp_tls_cert_file = /etc/pki/tls/certs/example.com.crt
    smtp_tls_key_file = /etc/pki/tls/private/example.com.key
    smtp_tls_loglevel = 1
    smtp_tls_session_cache_database = btree:/etc/postfix/smtp_tls_session_cache
    smtp_tls_session_cache_timeout = 3600s
    smtp_use_tls = yes
    smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
    smtpd_sasl_auth_enable = yes
    smtpd_sasl_local_domain = example.com
    smtpd_sasl_path = /var/run/dovecot/auth-client
    smtpd_sasl_security_options = noanonymous
    smtpd_sasl_tls_security_options = $smtpd_sasl_security_options
    smtpd_sasl_type = dovecot
    smtpd_tls_cert_file = /etc/pki/tls/certs/example.com.crt
    smtpd_tls_key_file = /etc/pki/tls/private/example.com.key
    smtpd_tls_loglevel = 1
    smtpd_tls_received_header = yes
    smtpd_tls_session_cache_database = btree:/etc/postfix/smtpd_tls_session_cache
    smtpd_tls_session_cache_timeout = 3600s
    smtpd_use_tls = yes
    soft_bounce = yes
    tls_random_source = dev:/dev/urandom
    unknown_local_recipient_reject_code = 550
    virtual_alias_maps = hash:/etc/postfix/vmail_aliases
    virtual_gid_maps = static:2222
    virtual_mailbox_base = /var/vmail
    virtual_mailbox_domains = hash:/etc/postfix/vmail_domains
    virtual_mailbox_maps = hash:/etc/postfix/vmail_mailbox
    virtual_minimum_uid = 2222
    virtual_transport = virtual
    virtual_uid_maps = static:2222

Please help! Will attach master.cf or anything other if needed.