Fichier main.cf avec le plugin Python
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Jeremie Dimino
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Python/etc/postfix/main.cf/gen.py
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237
Python/etc/postfix/main.cf/gen.py
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# -*- mode: python; code: utf-8 -*-
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header("Fichier de configuration principal de postfix.")
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# +------------------+
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# | Variables utiles |
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# +------------------+
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mx = has("mail-mx")
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# Indique si c'est un MX principal ou secondaire.
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main = has("mail-mx-main")
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secondary = has("mail-mx-secondary")
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# Indique si c'est un MX public, par exemple le serveur
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# des adherents est utilise uniquement en interne
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public = has("mail-mx-public")
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# Si vrai alors delivre localement les mails des adherents.
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users = has("users")
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# Si vrai alors passe les mails des ml a mailman
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manage_ml = has("mailing-list-manager")
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# La base de donnee utilise (pour les mx)
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if has("ldap"):
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db = "ldap"
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elif has("pgsql"):
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db = "pgsql"
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def db_file(suffix):
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'''Nom des fichiers de conf pour la base de donnees'''
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return "%(db)s:/etc/postfix/%(db)s-%(suffix)s.cf" % {"db": db, "suffix": suffix}
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def add(*values):
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'''Continue une ligne logique (voif postconf(5))'''
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out((len(last_definition)+3) * " " + ", ".join([tostring(v) for v in values]) + "\n")
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# La liste des variables de configuration de postfix
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import commands
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exports = [s.split(' ', 2)[0] for s in commands.getoutput("/usr/sbin/postconf -d").split("\n")]
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# Variables utiles
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@# Definition par securite (sinon il utilise gethostname)
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myhostname = pubhostname
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mydomain = "crans.org"
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@# Origine des mails
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myorigin = "crans.org"
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@# Reseaux locaux
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mynetworks = ["127.0.0.0/8"]
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if mx:
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add(["138.231.136.0/21", "138.231.144.0/21", "138.231.148.0/22", "10.231.136.0/24"])
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if not mx:
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@# Ecoute en local uniquement
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inet_interfaces = "loopback-only"
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if mx:
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@# Destinations acceptees
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mydestination = [hostname, "$myhostname",
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"localhost", "localhost.$mydomain"]
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if main | users:
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add(["$mydomain",
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"crans.ens-cachan.fr",
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"clubs.ens-cachan.fr",
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"install-party.ens-cachan.fr"])
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if manage_ml:
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add(["lists.$mydomain"])
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@# Domaine relaye par ce MX
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relay_domains = ["$mydestination"]
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if secondary:
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add(["$mydomain",
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"crans.ens-cachan.fr",
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"clubs.ens-cachan.fr",
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"install-party.ens-cachan.fr"])
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if public and not manage_ml:
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add(["lists.$mydomain"])
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if not mx:
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@# Les mails sont envoyes au MX principal
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relayhost = "smtp.adm.crans.org",
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@# Etre notifie ou non de l'arrive de nouveaux mails
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biff = users
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if mx:
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@# Pour pouvoir tester sans tout casser, on active les soft bounces.
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@# Ca permet aux mails de ne pas etre bounces en cas d'erreur, mais
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@# a la place, de renvoyer une erreur non permanente. En production
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@# il faut enlever ca.
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soft_bounce = False
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if users:
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@# On delivre dans des maildir
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mail_spool_directory = "/var/mail"
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@# +--------+
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@# | Divers |
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@# +--------+
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@# Delais pour les warnings
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delay_warning_time = "24h"
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@# Esthetisme
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smtpd_banner = "$myhostname ESMTP $mail_name (Debian/GNU)"
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if mx:
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@# Reecriture des entetes
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canonical_maps = db_file("canonical")
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else:
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@# Reecriture des entetes: @host.crans.org -> @crans.org
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canonical_maps = "regexp:/etc/postfix/canonical"
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if mx:
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@# Par ou passer (notement pour la distrtibution des adresse
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@# locales par le serveur des adherents)
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transport_maps = "hash:/etc/postfix/transport"
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@# Une infinite d'adresses mail par personne
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recipient_delimiter = "+"
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@# +-----------------+
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@# | Bases d'adresse |
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@# +-----------------+
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@# Les fichiers d'alias (pour newaliases)
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alias_database = "hash:/etc/postfix/aliases"
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if manage_ml:
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add("hash:/var/lib/mailman/data/aliases")
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alias_maps = "$alias_database"
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if mx:
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@# Plus les alias dans la base de donnees
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add(db_file("aliases"))
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if mx:
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@# On prend aussi en compte les utilisateurs de /etc/passwd
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local_recipient_maps = "$alias_maps unix:passwd.byname"
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if mx:
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@# Les anciennes ML @crans.org, @crans.ens-cachan.fr -> @lists.crans.org
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virtual_alias_maps = "hash:/etc/postfix/virtual"
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# Pour les non-mx il n'y a plus rien d'interessant
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if not mx:
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done()
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@# +-------------+
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@# | TLS et SASL |
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@# +-------------+
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@# TLS pour la reception
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smtpd_tls_cert_file = "/etc/ssl/certs/smtp.pem"
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smtpd_tls_key_file = "/etc/ssl/private/smtp.pem"
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smtpd_tls_CAfile = "/etc/ssl/certs/cacert.org.pem"
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smtpd_tls_loglevel = 0
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smtpd_use_tls = True
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smtpd_tls_received_header = True
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@# On utilise aussi TLS pour envoyer les mails
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smtp_tls_cert_file = ""
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smtp_tls_key_file = ""
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smtp_tls_CAfile = "/etc/ssl/certs/cacert.org.pem"
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smtp_tls_loglevel = 1
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smtp_use_tls = True
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@# On cache les sessions TLS car elles sont couteuses. Il parait que btree est mieux que sdbm,
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@# a essayer quand on aura postfix > 2.2
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smtpd_tls_session_cache_database = "sdbm:/var/run/smtpd_tls_session_cache"
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smtp_tls_session_cache_database = "sdbm:/var/run/smtp_tls_session_cache"
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tls_random_source = "dev:/dev/urandom"
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tls_daemon_random_source = "dev:/dev/urandom"
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if main:
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@# Authentification SASL pour relayer du mail
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smtpd_sasl_auth_enable = True
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@# Auth que si tls pour eviter des pass en clair sur le reseau
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smtpd_tls_auth_only = True
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@# +--------------------------+
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@# | Filtrages et limitations |
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@# +--------------------------+
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if main:
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@# Filtrage sur les sources de connexions
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smtpd_client_restrictions = "reject_rbl_client rbl-plus.mail-abuse.org"
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@## Filtrage au MAIL FROM
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@# Rejet si le domaine de l'envoyeur n'est pas dans un DNS
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smtpd_sender_restrictions = "reject_unknown_sender_domain"
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@## Filtrage au RCPT TO
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@# permet si le client est dans le reseau local
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smtpd_recipient_restrictions = "permit_mynetworks"
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@# rejette les recipients sans nom de domaine totalement qualifie
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add("reject_non_fqdn_recipient")
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if main:
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@# permet si le client est authentifie
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add("permit_sasl_authenticated")
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@# rejette les destinations non locales
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add("reject_unauth_destination")
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if public:
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@# accepte si le champ contourneGreylist de la base est a OK
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add("check_recipient_access " + db_file("sqlgrey"))
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@# accepte si la greylist est d'accord
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add("check_policy_service inet:127.0.0.1:2501")
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@# jette le reste
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@# Tailles maximales : 4Mo pour les msgs et 75 pour les mbox
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message_size_limit = 4194304
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mailbox_size_limit = 78643000
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@# Obligation de specifier le nom de domaine complet
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append_dot_mydomain = secondary
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if main:
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@## Filtrage AV
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@# Amavis + tuning lmtp
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content_filter = "lmtp:[amavis.adm.crans.org]:10024"
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lmtp_data_done_timeout = 1200
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lmtp_send_xforward_command = True
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@# Pieces jointes
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mime_header_checks = "regexp:/etc/postfix/mime_header_checks"
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if not secondary:
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@# +----------------------+
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@# | Connexion de secours |
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@# +----------------------+
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@#POUR SECOURS
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if not has("rescue-mode"):
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out("#")
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relayhost = "[titanic.crans.org]:25"
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