Почтовый серсер на FreeBDS.... postfix

main.cf (рабочий конфинг)

queue_directory = /var/spool/postfix

daemon_directory = /usr/local/libexec/postfix

mail_owner = postfix

myhostname = (ВАШ ДОМЕН) 

mydomain =  (ВАШ ДОМЕН)

inet_interfaces = all

mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, (Exchange IP, IP- соседнего Офиса- белый IP)

local_recipient_maps = hash:/usr/local/etc/postfix/users (Список пользователей в которых будет ходить почта, создается отдельный файл users в каталоге /usr/local/etc/postfix/users)

unknown_local_recipient_reject_code = 550

mynetworks_style = subnet

mynetworks = (IP  внутряняя сеть 172.20.0.0/16, 127.0.0.0/8, IP Exchange, IP соседнего офиса)

relay_domains = $mydestination

relayhost = 

transport_maps = hash:/usr/local/etc/postfix/transport (Транспорт указываем направление на IP Echange разных доменов)

alias_maps = hash:/usr/local/etc/postfix/aliases

recipient_canonical_maps = hash:/usr/local/etc/postfix/recipient_canonical

strict_rfc821_envelopes = yes

disable_vrfy_command = yes

smtpd_delay_reject = yes

smtpd_helo_required = yes

smtpd_helo_restrictions = permit_mynetworks,

reject_invalid_hostname,

permit

smtpd_sender_restrictions = permit_mynetworks,

reject_non_fqdn_sender,

reject_unknown_sender_domain,

permit

smtpd_recipient_restrictions = reject_unauth_pipelining permit_mynetworks reject_non_fqdn_recipient reject_unknown_recipient_domain reject_unlisted_recipient reject_unauth_destination permit

smtpd_client_restrictions = permit_mynetworks, reject_rbl_client,

reject_maps_rbl

permit

reject_rbl_client = bl.spamcop.net

reject_rbl_client =  list.dsbl.org

reject_rbl_client = relays.ordb.org

reject_rbl_client = dynablock.wirehub.net

reject_rbl_client = blackholes.mail-abuse.org

reject_rbl_client = dnsbl.njabl.orgreject_rbl_client = b.barracudacentral.org

reject_rbl_client = dnsbl-2.uceprotect.net

reject_rbl_client = dnsbl-3.uceprotect.netmaps_rbl_domains = xbl.spamhaus.org, spamrbl.msrbl.net, dnsbl-3.uceprotect.net, sbl.spamhaus.org, spam.dnsbl.sorbs.net,

debug_peer_level = 2

sendmail_path = /usr/local/sbin/sendmail

newaliases_path = /usr/local/bin/newaliases

mailq_path = /usr/local/bin/mailq

setgid_group = maildrop

html_directory = /usr/local/share/doc/postfix

manpage_directory = /usr/local/man

sample_directory = /usr/local/etc/postfix

readme_directory = /usr/local/share/doc/postfix

message_size_limit=999000000

mailbox_size_limit=999000000

data_directory = /var/db/postfix