Salut,
Après avoir fait le pas mal de recherche sur le web je n'arrive pas à régler mon problème.
Je peux recevoir des mails mais pas en envoyer voici les logs dans /var/log/maillog
Sep 14 17:00:05 xxxxxxx postfix/smtp[25960]: 0732911C0AC: to=<contact@xxxxxxx.fr>, relay=none, delay=0.01, delays=0.01/0/0/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=xxxxxxxx.fr type=MX: Host not found, try again)Voila le contenu de /etc/postfix/main.cf :
# Règles sur les adresses de destination
# permit_sasl_authenticated : Accepter la connexion lorsque le client est authe$
# reject_non_fqdn_recipient : Refuser les adresses de destinations invalides (n$
smtpd_recipient_restrictions =
permit_mynetworks,
permit_sasl_authenticated,
#reject_non_fqdn_recipient,
reject_unauth_destination,
#reject_unknown_recipient_domain,
#reject_rbl_client zen.spamhaus.org
# Règles sur l'échange HELO qui survient avant la connexion
# reject_invalid_helo_hostname : Refuser les échanges HELO invalides
# reject_non_fqdn_helo_hostname : Refuser les noms d'hôte invalides (non FQDN)
# reject_unknown_helo_hostname : Refuser les noms d'hôte qui n'ont pas de champ$
smtpd_helo_restrictions =
permit_mynetworks,
permit_sasl_authenticated,
#reject_invalid_helo_hostname,
#reject_non_fqdn_helo_hostname,
#reject_unknown_helo_hostname
# Règles de connexion des clients
# permit_sasl_authenticated : Accepter la connexion lorsque le client est authe$
# reject_plaintext_session : Refuser les connexions non sécurisées
# reject_unauth_pipelining : Refuser les défauts lors de la connexion
#smtpd_client_restrictions =
#permit_mynetworks,
#permit_inet_interfaces,
#permit_sasl_authenticated,
#reject_plaintext_session,
#reject_unauth_pipelining
# Règles sur les expéditeurs
# reject_non_fqdn_sender : Refuser les expéditeurs invalides (non FQDN)
# reject_unknown_sender_domain : Refuser les expéditeurs qui n'ont pas de champ$
# reject_sender_login_mismatch : Refuser les expéditeurs locaux non authentifiés
#smtpd_sender_restrictions =
#reject_non_fqdn_sender,
#reject_unknown_sender_domain,
#reject_sender_login_mismatch
# Smtp ( OUTGOING / Client )
smtp_tls_loglevel = 1
smtp_tls_security_level = may
smtp_tls_protocols = !SSLv2, !SSLv3
smtp_tls_mandatory_protocols = !SSLv2, !SSLv3
smtp_tls_mandatory_ciphers = high
smtp_tls_exclude_ciphers = aNULL, eNULL, EXPORT, DES, 3DES, RC2, RC4, MD5, $
smtp_tls_note_starttls_offer = yes
# -----------------------------------------------------------------------------$
# Smtpd ( INCOMING / Server )
smtpd_tls_loglevel = 1
smtpd_tls_auth_only = yes
smtpd_tls_security_level = may
smtpd_tls_received_header = yes
smtpd_tls_protocols = !SSLv2, !SSLv3
smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
smtpd_tls_mandatory_ciphers = medium
tls_preempt_cipherlist = yes
tls_random_source = dev:/dev/urandom
smtpd_tls_auth_only = yes
smtpd_tls_cert_file = /etc/letsencrypt/live/mail.xxxxxx.fr/fullchain.pem
smtpd_tls_key_file = /etc/letsencrypt/live/mail.xxxxxx.fr/privkey.pem
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
lmtp_tls_session_cache_database = btree:${data_directory}/lmtp_scache
# Paramètres de connexion SASL
# C'est ici que l'on déclare Dovecot comme une passerelle pour authentifier les$
# Postfix peut s'appuyer sur Dovecot pour identifier les connexions SMTP.
smtpd_sasl_auth_enable = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_tls_security_options = $smtpd_sasl_security_options
smtpd_sasl_local_domain = $mydomain
smtpd_sasl_authenticated_header = yes
broken_sasl_auth_clients = yes
virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf
smtpd_sender_login_maps = mysql:/etc/postfix/mysql-sender-login-maps.cf
virtual_transport = lmtp:unix:private/dovecot-lmtp
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
append_dot_mydomain = yes
readme_directory = no
delay_warning_time = 4h
mailbox_command = procmail -a "$EXTENSION"
recipient_delimiter = +
disable_vrfy_command = yes
message_size_limit = 502400000
mailbox_size_limit = 1024000000
inet_interfaces = all
inet_protocols = ipv4
myhostname = mail.xxxxxx.fr
myorigin = $mydomain
mydestination = localhost, localhost.$mydomain
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
#milter_protocol = 6
#milter_default_action = accept
#smtpd_milters = unix:/opendkim/opendkim.sock
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
data_directory = /var/lib/postfix
mail_owner = postfix
local_recipient_maps = unix:passwd.byname
home_mailbox = mail/
home_mailbox = /var/mail/
mail_spool_directory = /var/mail
mail_spool_directory = /var/spool/mail
debug_peer_level = 2
sendmail_path = /usr/sbin/sendmail.postfix
newaliases_path = /usr/bin/newaliases.postfix
mailq_path = /usr/bin/mailq.postfix
setgid_group = postdrop
mailbox_command = /usr/libexec/dovecot/deliverEt voici ce que j'ai dans /etc/postfix/master.cf :
#
# Postfix master process configuration file. For details on the format
# of the file, see the master(5) manual page (command: "man 5 master").
#
# Do not forget to execute "postfix reload" after editing this file.
#
# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (100)
# ==========================================================================
smtp inet n - - - - smtpd -v
smtp inet n - - - 1 postscreen
#smtpd pass - - - - - smtpd
#dnsblog unix - - - - 0 dnsblog
#tlsproxy unix - - - - 0 tlsproxy
submission inet n - - - - smtpd
-o syslog_name=postfix/submission
-o smtpd_tls_security_level=encrypt
-o smtpd_sasl_auth_enable=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject
# -o milter_macro_daemon_name=ORIGINATING
smtp inet n - - - - smtpd
# -o smtpd_tls_wrappermode=yes
# -o smtpd_sasl_auth_enable=yes
# -o syslog_name=postfix/smtps
# -o smtpd_tls_wrappermode=yes
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
# -o milter_macro_daemon_name=ORIGINATING
#628 inet n - - - - qmqpd
pickup fifo n - - 60 1 pickup
cleanup unix n - - - 0 cleanup
qmgr fifo n - n 300 1 qmgr
#qmgr fifo 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
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq unix n - - - - showq
error unix - - - - - error
retry unix - - - - - error
discard unix - - - - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - - - - lmtp
anvil unix - - - - 1 anvil
scache unix - - - - 1 scache
#
# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent. See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ====================================================================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
#
# ====================================================================
#
# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
#
# Specify in cyrus.conf:
# lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
#
# Specify in main.cf one or more of the following:
# mailbox_transport = lmtp:inet:localhost
# virtual_transport = lmtp:inet:localhost
#
# ====================================================================
#
# Cyrus 2.1.5 (Amos Gouaux)
# Also specify in main.cf: cyrus_destination_recipient_limit=1
#
#cyrus unix - n n - - pipe
# user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
#
# ====================================================================
# Old example of delivery via Cyrus.
#
#old-cyrus unix - n n - - pipe
# flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
#
# ====================================================================
#
# See the Postfix UUCP_README file for configuration details.
#
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
#
# Other external delivery methods.
#
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
scalemail-backend unix - n n - 2 pipe
flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop}$
mailman unix - n n - - pipe
flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}
relay unix - - n - - smtp -o smtp_fallback_r$
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
Merci d'avance pour votre aide car la je commence vraiment à désespérer ! 