Urgent: Realy big Mail Delivery/Spam Problem

Discussion in 'General' started by binover, Feb 2, 2009.

  1. binover

    binover New Member

    Guys one of my servers is Relaying spam as crazy, y stoped it a little droped conections from the spammer's Ips but now I don´t know why y can't deliver any mail saing "refused to talk to me: 554 5.7.1 Access denied".

    here is my postfix's config

    mail:/home/zen# postconf -n
    alias_maps = hash:/etc/aliases
    allow_mail_to_files = alias,forward,include
    append_dot_mydomain = no
    biff = no
    broken_sasl_auth_clients = yes
    config_directory = /etc/postfix
    inet_protocols = all
    mailbox_command = procmail -a "$EXTENSION"
    mailbox_size_limit = 0
    message_size_limit = 20000000
    mydestination = /etc/postfix/local-host-names
    mynetworks = 127.0.0.0/8, 200.5.90.192/26, 192.168.0.0/16, 190.3.2.0/24, 192.168.0.0/16, 190.30.255.0/24, 190.136.23.0/24, 200.107.224.0/21
    myorigin = /etc/mailname
    recipient_delimiter = +
    smtp_tls_note_starttls_offer = yes
    smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache
    smtp_use_tls = yes
    smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
    smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
    smtpd_sasl_auth_enable = yes
    smtpd_sasl_local_domain =
    smtpd_sasl_security_options = noanonymous
    smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
    smtpd_tls_auth_only = no
    smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt
    smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key
    smtpd_tls_loglevel = 1
    smtpd_tls_received_header = yes
    smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache
    smtpd_tls_session_cache_timeout = 3600s
    smtpd_use_tls = yes
    tls_random_source = dev:/dev/urandom

    *I know "mynetworks" is very full of networks, it's just a test

    here some lines of my log file

    8428710:Feb 2 12:31:13 ns2 postfix/smtp[22083]: 2E1F21FC100: host mail2.navego.com.ar[201.251.135.172] refused to talk to me: 554 5.7.1 Access denied
    8428853:Feb 2 12:31:14 ns2 postfix/smtp[22083]: 2E1F21FC100: to=<[email protected]>, relay=mail.navego.com.ar[201.251.135.172], delay=10, status=deferred (host mail.navego.com.ar[201.251.135.172] refused to talk to me: 554 5.7.1 Access denied)

    I don't know what to do, this start to happend this week...
    Any help is very usefull.
     
  2. binover

    binover New Member

    without touching anything the error change to "(delivery temporarily suspended: unknown mail transport error"

    in the log

    8972636:Feb 2 13:06:35 ns2 postfix/qmgr[21198]: 57FFD1FC0FF: to=<[email protected]>, relay=none, delay=2111, status=deferred (delivery temporarily suspended: unknown mail transport error)
     
  3. binover

    binover New Member

    Here are some warning I found in the log file, I don´t know if something is usefull:
    ---
    Feb 2 14:28:39 ns2 postfix/qmgr[8221]: warning: premature end-of-input on private/smtp socket while reading input attribute name
    Feb 2 14:28:39 ns2 postfix/qmgr[8221]: warning: private/smtp socket: malformed response
    Feb 2 14:28:39 ns2 postfix/qmgr[8221]: warning: transport smtp failure -- see a previous warning/fatal/panic logfile record for the problem description
    ---

    Feb 2 14:28:37 ns2 postfix/smtp[8329]: warning: Only sdbm: type allowed for btree:/var/spool/postfix/smtp_scache
    Feb 2 14:28:37 ns2 postfix/smtp[8329]: warning: Could not open session cache btree:/var/spool/postfix/smtp_scache
     
  4. falko

    falko Super Moderator ISPConfig Developer

    Please check if you're blacklisted: http://mxtoolbox.com/blacklists.aspx

    You should only have 127.0.0.0/8 in the mynetworks line; the other values are probably the reason that your server is abused by spammers.
     

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