Очень большое спасибо за ответ

>grep 31A519B1 ваш_мейллог возможно покажет откуда ноги растут.

Вот вывод - но откуда не понял  :(

server2 adminserver@14:30:37 ~ $ grep -i "31A519B1" /var/log/mail.log
Nov  6 12:31:47 server2 postfix/smtpd[13043]: 31A519B1: client=unknown[192.168.0.40], sasl_method=LOGIN, sasl_username=nilov
Nov  6 12:31:47 server2 postfix/cleanup[13046]: 31A519B1: message-id=<20081106093147.31A519B1@server2.obj.ru>
Nov  6 12:31:47 server2 postfix/qmgr[4094]: 31A519B1: from=<>, size=3033, nrcpt=1 (queue active)
Nov  6 12:32:47 server2 postfix/smtp[13048]: 31A519B1: to=<8946.g23@relcom.ru>, relay=none, delay=60, delays=0.05/0/60/0, dsn=4.4.1, status=deferred (connect to relay2.relcom.ru[193.125.152.57]:25: Connection timed out)
Nov  6 12:41:58 server2 postfix/qmgr[4094]: 31A519B1: from=<>, size=3033, nrcpt=1 (queue active)
Nov  6 12:42:58 server2 postfix/smtp[13167]: 31A519B1: to=<8946.g23@relcom.ru>, relay=none, delay=671, delays=611/0.02/60/0, dsn=4.4.1, status=deferred (connect to relay2.relcom.ru[193.125.152.57]:25: Connection timed out)
Nov  6 12:56:58 server2 postfix/qmgr[4094]: 31A519B1: from=<>, size=3033, nrcpt=1 (queue active)
Nov  6 12:57:54 server2 postfix/smtp[13310]: 31A519B1: to=<8946.g23@relcom.ru>, relay=relay2.relcom.ru[193.125.152.57]:25, delay=1567, delays=1511/0.02/56/0.15, dsn=2.0.0, status=sent (250 OK id=1Ky1da-000PPe-Ry)
Nov  6 12:57:54 server2 postfix/qmgr[4094]: 31A519B1: removed
server2 adminserver@14:30:51 ~ $

>Судя по всему вы неправильно настроили перенаправление, без конфига ничего сказать нельзя
>

Вот конфиг постфикса

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
append_dot_mydomain = no
readme_directory = no
myhostname = server2.obj.ru
mydomain = obj.ru
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = obj.ru, server2.obj.ru, localhost.obj.ru, localhost
relay = smtp1.mtw.ru
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.0.0/24
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
smtpd_sasl_auth_enable = yes
smtpd_sasl2_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtpd_sasl_local_domain =
broken_sasl_auth_clients = yes
message_size_limit = 20480000
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtpd_tls_auth_only = no
smtp_use_tls = yes
smtpd_use_tls = yes
smtp_tls_note_starttls_offer = yes
smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key
smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt
smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom
transport_maps = hash:/etc/postfix/transport_maps
virtual_alias_domains = hash:/etc/postfix/virtual_alias_domains
virtual_alias_maps = hash:/etc/postfix/virtual_alias_maps

если нужен еще какой конфиг скажите выложу