Смотрю очередь писем, в ней мульон писем, явно синтетического происхождения:

90B8973C6* 17089 Mon Oct 23 13:59:11 prkxxftebevosoq@мой_домен.ru
stephaniestyles@charter.net
sudacol@charter.net
teresahines@charter.net
stacylopez@charter.net
sjr2@charter.net
stephanie_bryan@charter.net

9EEAE73C9* 16582 Mon Oct 23 13:59:11 iluznsilytaoeut@мой_домен.ru
taunyah@charter.net
sn00py@charter.net
stuartf1@charter.net
smmorr@charter.net
snouts@charter.net

На моем сервере "мой_домен.ru" нет юзерей iluznsilytaoeut и prkxxftebevosoq
Как такого рода письма отрезать и не допускать к отправке? А то spool каталог разростается до огромадных размеров, когда очередь из писем из 15000 сообщений зависает. Почтовик к середине дня загибается :(.

Хелп!

PS
На выделенной FreeBSD машине стоит www+postfix. На сервере одна сетевая с одим реальным IP, локалки нет.

========== postconf -n ======

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
body_checks = pcre:/usr/local/etc/postfix/pcre_body
command_directory = /usr/local/sbin
config_directory = /usr/local/etc/postfix
content_filter = scan:127.0.0.1:10025
daemon_directory = /usr/local/libexec/postfix
debug_peer_level = 1
disable_vrfy_command = yes
header_checks = regexp:/usr/local/etc/postfix/header_checks
inet_interfaces = all
local_recipient_maps = $alias_maps unix:passwd.byname
mail_owner = postfix
mail_spool_directory = /var/mail
mailbox_command = /usr/local/bin/procmail -f- -a "$USER"
mailbox_size_limit = 100000000
mailq_path = /usr/local/bin/mailq
manpage_directory = /usr/local/man
message_size_limit = 15000000
mydestination = $myhostname, localhost.$mydomain, $mydomain, ivanov.ru, petrov.ru, sidorov.ru
mydomain = may_domain.ru
myhostname = may_domain.ru
mynetworks = $config_directory/mynetworks
myorigin = $mydomain
newaliases_path = /usr/local/bin/newaliases
queue_directory = /var/spool/postfix
readme_directory = no
receive_override_options = no_address_mappings
relay_domains = /usr/local/etc/postfix/relay_domains
sample_directory = /usr/local/etc/postfix
sendmail_path = /usr/local/sbin/sendmail
setgid_group = maildrop

smtpd_client_restrictions = permit_mynetworks,
hash:/usr/local/etc/postfix/maps/skipcheck,
check_client_access regexp:/usr/local/etc/postfix/access_regexp,
reject_rbl_client blackholes.mail-abuse.org,
reject_rbl_client dialups.mail-abuse.org,
reject_rbl_client relays.ordb.org,
reject_rbl_client dul.ru,
reject_rbl_client opm.blitzed.org,
reject_rbl_client list.dsbl.org,
reject_rbl_client dnsbl.njabl.org,
reject_rbl_client dynablock.njabl.org,
reject_rbl_client combined.njabl.org,
reject_rbl_client blackhole.securitysage.com,
reject_unknown_client,
permit

smtpd_helo_restrictions =
permit_mynetworks,
check_client_access regexp:/usr/local/etc/postfix/access_regexp,
reject_invalid_hostname,
reject_non_fqdn_hostname,
reject_unknown_hostname,
permit
smtpd_sender_restrictions = permit_mynetworks,
regexp:/usr/local/etc/postfix/access_sender,
reject_unauth_destination
reject_non_fqdn_sender,
reject_unknown_sender_domain,
permit
smtpd_recipient_restrictions =
reject_unauth_pipelining,
reject_non_fqdn_recipient,
reject_unknown_recipient_domain,
permit_mynetworks,
regexp:/usr/local/etc/postfix/access_recipient,
reject_unauth_destination,
permit
strict_rfc821_envelopes = yes
smtpd_helo_required = yes
disable_vrfy_command = yes

### Antivir ClamAV
content_filter = scan:127.0.0.1:10025
receive_override_options = no_address_mappings

#SpamAssassin
mailbox_command = /usr/local/bin/procmail -f- -a "$USER"