а где именно?, у меня postfix стоит c PostgesSQL по статье http://www.deepnet.ru/docs/postfix-pgsql.shtml
а в firewall 25 порт
полностью открыт и на вход и на выход
add allow tcp from any to any 25
add allow tcp from any 25 to any
вот конфиг main.cf
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
mail_owner = postfix
default_privs = nobody
myhostname = vlankas.ru
mydomain = vlankas.ru
myorigin = $mydomain
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
unknown_local_recipient_reject_code = 550
mynetworks_style = host
mynetworks = 127.0.0.0/8 192.168.0.0/16
relay_domains = $mydestination
debug_peer_level = 1
debugger_command =
PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
xxgdb $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail
newaliases_path = /usr/bin/newaliases
mailq_path = /usr/bin/mailq
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/local/man
sample_directory = /etc/postfix
readme_directory = no
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination, reject_non_fqdn_recipient, reject_rbl_client list.dsbl.org, reject_rbl_client relays.ordb.org, reject_rbl_client dynablock.wirehub.net, reject_rbl_client blackholes.wirehub.net, reject_rbl_client dnsbl.njabl.org, reject_rbl_client dialups.mail-abuse.org, reject_rbl_client dul.ru
transport_maps = pgsql:/etc/postfix/sql/transport.pgsql
virtual_mailbox_base = /var/mail/virtual
virtual_mailbox_maps = pgsql:/etc/postfix/sql/users.pgsql
virtual_alias_maps = pgsql:/etc/postfix/sql/aliases.pgsql
virtual_uid_maps = pgsql:/etc/postfix/sql/uids.pgsql
virtual_gid_maps = pgsql:/etc/postfix/sql/gids.pgsql
relay_domains = $transport_maps
local_recipient_maps = $virtual_mailbox_maps $virtual_maps $transport_maps
smtpd_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_sasl_local_domain =
content_filter = avscan:127.0.0.1:10025
receive_override_options = no_address_mappings
myorigin = vlankas.ru
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Я не силен в postfix-е - что конкретнее нужно смотреть и где?