>выложи конфиг постфикса (main.cf) без комментариев
>будет видно, что где лежит и как настроено
>а так чего гадать... queue_directory = /var/spool/postfix
daemon_directory = /usr/local/libexec/postfix
mail_owner = _postfix
myhostname = ssl.stu.neva.ru
mydomain = stu.neva.ru
myorigin = $myhostname
unknown_local_recipient_reject_code = 550
mynetworks =
10.0.170.0/24,
10.0.172.0/24,
10.0.174.0/24,
10.0.175.0/24,
10.0.21.0/24,
127.0.0.0/8,
194.85.97.80/28,
195.131.162.139,
195.131.196.17,
195.182.129.114,
213.170.70.60,
80.70.233.14,
81.177.13.5,
91.122.48.63,
93.185.189.2,
194.105.214.26,
195.208.115.173
header_checks = regexp:/etc/postfix/header_checks
body_checks = regexp:/etc/postfix/body_checks
debug_peer_level = 2
debugger_command =
PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
xxgdb $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/local/sbin/sendmail
newaliases_path = /usr/local/sbin/newaliases
mailq_path = /usr/local/sbin/mailq
setgid_group = _postdrop
html_directory = /usr/local/share/doc/postfix/html
manpage_directory = /usr/local/man
sample_directory = /etc/postfix
readme_directory = /usr/local/share/doc/postfix/readme
message_size_limit = 40960000
smtpd_client_restrictions =
permit_mynetworks,
reject_rbl_client bl.spamcop.net,
reject_rbl_client sbl.spamhaus.org,
hash:/etc/postfix/access,
regexp:/etc/postfix/bad_names,
permit
smtpd_recipient_restrictions =
permit_mynetworks,
reject_unauth_destination,
check_sender_access hash:/etc/postfix/whitelist,
check_policy_service inet:127.0.0.1:10023
virtual_alias_maps = hash:/etc/postfix/virtual