>>неужели админы с прямыми руками ничего не посоветуют. Жаль, я думал они
>>не только критиковать умеют.
>
>советую выслать конфиг...телепатов тут нет

Вот конфиг:

--cut---
queue_directory = /var/spool/postfix
command_directory = /usr/local/sbin
daemon_directory = /usr/local/libexec/postfix
mail_owner = postfix
default_privs = nobody
myhostname = post.mykolaiv.sta
mydomain = mykolaiv.sta
myorigin = $myhostname
inet_interfaces = 10.10.14.100 , 127.0.0.1
mydestination = $myhostname, localhost.$mydomain
mynetworks_style = host
mynetworks = 190.10.14.0/28, 127.0.0.0/8
alias_maps = hash:/etc/mail/aliases
alias_database = hash:/etc/mail/aliases
smtpd_banner = $myhostname ESMTP $mail_name ($mail_version)
debug_peer_level = 2
debugger_command =
     PATH=/usr/bin:/usr/X11R6/bin
     xxgdb $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/local/sbin/sendmail
newaliases_path = /usr/local/bin/newaliases
mailq_path = /usr/local/bin/mailq
setgid_group = maildrop
manpage_directory = /usr/local/man
sample_directory = /usr/local/etc/postfix
readme_directory = no
smtpd_sasl_auth_enable = yes
smtp_sasl_auth_enable = yes
smtpd_sasl_local_domain = $myhostname
smtpd_delay_reject=yes
broken_sasl_auth_clients = yes
maps_rbl_reject_code = 554
smtpd_recipient_restrictions=
  permit_sasl_authenticated,
  reject_sender_login_mismatch,
  reject_unknown_sender_domain
smtpd_client_restrictions =
  permit_sasl_authenticated,
  reject_unauth_destination,
  reject_sender_login_mismatch
smtpd_sender_restrictions =
  permit_sasl_authenticated
smtpd_helo_restrictions = permit_sasl_authenticated
smtpd_sasl_security_options = noanonymous, noplaintext
smtpd_helo_required = no
--cut--