postfix open remailer

Discussion in 'Server Operation' started by gabrix, Jun 21, 2008.

  1. gabrix

    gabrix New Member

    Having a list of servers i want to allow to relay mail through my server how do i better configure postfix ????
  2. falko

    falko Super Moderator ISPConfig Developer

    Add the IP addresses to mynetworks in /etc/postfix/, e.g.
    mynetworks =,
  3. gabrix

    gabrix New Member

    I have a list of clients i don't want them to go through gmail still using the local smtp , which uses gmail to see mail delivered to the final recipient because mine is a blacklisted dial up account and i have my system clients i want to use local smtp and so gmail . To do this i have commented the relayhost directive pointing to [] and insted i'm using
    smtp_sender_dependent_authentication = yes
    sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relayhost
    To say postfix to use a different smtp relayhost for senders.
    I have also added:
    relay_domains = hash:/etc/postfix/relay_domains
    transport_maps = hash:/etc/postfix/transport
    With $relay_domains placed also in $mydestination
    I want to post you also my actual postconf -n:
    alias_database = hash:/etc/aliases
    alias_maps = hash:/etc/aliases
    append_dot_mydomain = no
    biff = no
    broken_sasl_auth_clients = yes
    command_directory = /usr/sbin
    config_directory = /etc/postfix
    daemon_directory = /usr/lib/postfix
    data_directory = /var/lib/postfix
    debug_peer_level = 3
    debug_peer_list =,
    delay_warning_time = 8h
    disable_dns_lookups = yes
    html_directory = no
    inet_interfaces = all
    mailbox_command = 
    mailbox_size_limit = 0
    mailq_path = /usr/bin/mailq
    manpage_directory = /usr/local/man
    mydestination = $relay_domains, mail.$mydomain ,pop.$mydomain , smtp.$mydomain,www.$mydomain,ns2.$mydomain,ns1.$mydomain ,argo.$mydomain, ftp.$mydomain,, localhost.localdomain , localhost
    mydomain =
    myhostname = mail.$mydomain
    mynetworks = ,
    newaliases_path = /usr/bin/newaliases
    queue_directory = /var/spool/postfix
    recipient_delimiter = +
    sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relayhost
    smtp_sasl_auth_enable = yes
    smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
    smtp_sasl_security_options = 
    smtp_sasl_tls_security_options = $smtp_sasl_security_options
    smtp_sender_dependent_authentication = yes
    smtp_tls_CAfile = /etc/postfix/ssl/cacert.pem
    smtp_tls_cert_file = /etc/postfix/ssl/smtpcert.pem
    smtp_tls_key_file = /etc/postfix/ssl/smtpkey.pem
    smtp_tls_loglevel = 2
    smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
    smtp_use_tls = yes
    smtpd_banner = $myhostname ESMTP $mail_name (GNULinux/FreeSystem)
    smtpd_enforce_tls = no
    smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, check_relay_domains, permit
    smtpd_sasl_auth_enable = yes
    smtpd_sasl_authenticated_header = yes
    smtpd_sasl_local_domain = $mydomain
    smtpd_sasl_path = private/auth
    smtpd_sasl_type = dovecot
    smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
    smtpd_tls_CApath = /etc/postfix/ssl/
    smtpd_tls_ask_ccert = no
    smtpd_tls_auth_only = no
    smtpd_tls_cert_file = /etc/postfix/ssl/smtpcert.pem
    smtpd_tls_key_file = /etc/postfix/ssl/smtpkey.pem
    smtpd_tls_received_header = yes
    smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
    smtpd_tls_wrappermode = yes
    smtpd_use_tls = yes
    soft_bounce = yes
    tls_random_exchange_name = ${data_directory}/prng_exch
    tls_random_source = dev:/dev/urandom
    transport_maps = hash:/etc/postfix/transport
    To have a better general understanding of my plan .
    I have split senders also at bind9 dns level making a subdomain of mydomain which i don't want mail to be sent by my local smtp through
    Logs look like postfix is using succesfully , for localusers .
    Jul 15 10:13:57 mail postfix/smtp[4079]: 6F6571079CA: to=<[email protected]>,[]:25, delay=3.4, delays=0.07/0.03/1/2.3, dsn=2.0.0, status=sent (250 2.0.0 OK 1216109600 z40sm2181928ugc.55)
    Jul 15 10:13:57 mail postfix/qmgr[3749]: 6F6571079CA: removed
    But i don't see still mail delivered to Maildir for pop , where i have dovecot , it might be also a bind9 issue , my subdomain is also second MX .
    Last edited: Jul 15, 2008

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