Postfix - 
mail postfix/error[44127]: 105D740DCB5C: to=<oleg@maindomain.ru>, relay=none, delay=0.04, delays=0.02/0.01/0/0.01, dsn=4.3.0, status=deferred (mail transport unavailable)

 

smtp      inet  n       -       n       -       -       smtpd
smtp      inet  n       -       n       -       1       postscreen
smtpd     pass  -       -       n       -       -       smtpd
dnsblog   unix  -       -       n       -       0       dnsblog
tlsproxy  unix  -       -       n       -       0       tlsproxy
#submission inet n       -       n       -       -       smtpd
#  -o syslog_name=postfix/submission
#  -o smtpd_tls_security_level=encrypt
#  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_reject_unlisted_recipient=no
#  -o smtpd_client_restrictions=$mua_client_restrictions
#  -o smtpd_helo_restrictions=$mua_helo_restrictions
#  -o smtpd_sender_restrictions=$mua_sender_restrictions
#  -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING

smtps     inet  n       -       n       -       -       smtpd
  -o syslog_name=postfix/smtps
  -o smtpd_tls_wrappermode=yes
  -o smtpd_sasl_auth_enable=yes
  -o smtpd_reject_unlisted_recipient=no
  -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
  -o milter_macro_daemon_name=ORIGINATING

628       inet  n       -       n       -       -       qmqpd
pickup    unix  n       -       n       60      1       pickup
cleanup   unix  n       -       n       -       0       cleanup
qmgr      unix  n       -       n       300     1       qmgr
tlsmgr    unix  -       -       n       1000?   1       tlsmgr
rewrite   unix  -       -       n       -       -       trivial-rewrite
bounce    unix  -       -       n       -       0       bounce
defer     unix  -       -       n       -       0       bounce
trace     unix  -       -       n       -       0       bounce
verify    unix  -       -       n       -       1       verify
flush     unix  n       -       n       1000?   0       flush
proxymap  unix  -       -       n       -       -       proxymap
proxywrite unix -       -       n       -       1       proxymap
smtp      unix  -       -       n       -       -       smtp
relay     unix  -       -       n       -       -       smtp
showq     unix  n       -       n       -       -       showq
error     unix  -       -       n       -       -       error
retry     unix  -       -       n       -       -       error
discard   unix  -       -       n       -       -       discard
local     unix  -       n       n       -       -       local
virtual   unix  -       n       n       -       -       virtual
lmtp      unix  -       -       n       -       -       lmtp
anvil     unix  -       -       n       -       1       anvil
scache    unix  -       -       n       -       1       scache

dovecot unix - n n - - pipe
  flags=DRhu user=dovauth:dovauth argv=/usr/libexec/dovecot/deliver -d ${recipient}

soft_bounce = no
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = mail.maindomain.ru
mydomain = maindomain.ru
myorigin = $myhostname
inet_interfaces = all
inet_protocols = ipv4
mydestination = localhost.$mydomain, localhost
#unknown_local_recipient_reject_code = 550
mynetworks = 127.0.0.1 192.168.7.0/24
#alias_maps = ldap:/etc/postfix/ldap-aliases.cf
#alias_database = hash:/etc/aliases
mynetworks_style = host

smtpd_banner = $myhostname ESMTP $mail_name
debug_peer_level = 3
debugger_command =
         PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
         ddd $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail.postfix
newaliases_path = /usr/bin/newaliases.postfix
mailq_path = /usr/bin/mailq.postfix
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/postfix-2.10.1/samples
readme_directory = /usr/share/doc/postfix-2.10.1/README_FILES


relay_domains = intranet.ru1 intranet.ru2
transport_maps = hash:/etc/postfix/virtual_transport

smtpd_discard_ehlo_keywords = etrn, silent-discard
smtpd_forbidden_commands = CONNECT GET POST
broken_sasl_auth_clients = yes
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtp_always_send_ehlo = yes
disable_vrfy_command = yes

smtpd_helo_restrictions = permit_mynetworks,
 permit_sasl_authenticated,
 reject_invalid_helo_hostname,
 reject_non_fqdn_helo_hostname

smtpd_data_restrictions = permit_mynetworks,
 permit_sasl_authenticated,
 reject_unauth_pipelining,
 reject_multi_recipient_bounce

smtpd_sender_restrictions = permit_mynetworks,
 permit_sasl_authenticated,
 reject_non_fqdn_sender,
 reject_unknown_sender_domain

smtpd_recipient_restrictions = permit_mynetworks,
 permit_sasl_authenticated,
 reject_non_fqdn_recipient,
 reject_unauth_destination,
 reject_unknown_recipient_domain,
 reject_multi_recipient_bounce
address_verify_sender = $double_bounce_sender

smtpd_tls_auth_only = no
smtpd_use_tls = yes
smtp_use_tls = yes
smtpd_tls_security_level = may
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
smtp_tls_session_cache_database = btree:$data_directory/smtp_tls_session_cache
smtpd_tls_key_file = /etc/ssl/private/ExchangeMainKey.key
smtpd_tls_cert_file = /etc/ssl/certs/ExchangeMain.crt
tls_random_source = dev:/dev/urandom

# Ограничение максимального размера письма в байтах
mailbox_size_limit = 52428800000
message_size_limit = 51200000
smtpd_soft_error_limit = 10
smtpd_hard_error_limit = 15
smtpd_error_sleep_time = 20
anvil_rate_time_unit = 60s
smtpd_client_connection_count_limit = 20
smtpd_client_connection_rate_limit = 30
smtpd_client_message_rate_limit = 10
smtpd_client_event_limit_exceptions = 127.0.0.0/8
smtpd_client_connection_limit_exceptions = 127.0.0.0/8

maximal_queue_lifetime = 1h
bounce_queue_lifetime = 1h

smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sasl_path = /var/spool/postfix/private/auth
virtual_transport = hash:/etc/postfix/virtual_transport