Postfix receive email from outside not working

Hi. This is my main.cf from postfix:

queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = mail.almatyschool.su
mydomain = almatyschool.su
myorigin = $mydomain
inet_interfaces = all
inet_protocols = ipv4
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
unknown_local_recipient_reject_code = 550
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
home_mailbox = Maildir/
smtpd_banner = $myhostname ESMTP
debug_peer_level = 2
debugger_command =
     PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
     ddd $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail.postfix
newaliases_path = /usr/bin/newaliases.postfix
mailq_path = /usr/bin/mailq.postfix
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/postfix-2.6.6/samples
readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES

[commented area]
SASL configuration

smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain = $myhostname
smtpd_client_restrictions =
    permit_mynetworks,
    reject_unknown_client,
    permit
smtpd_recipient_restrictions =
    permit_mynetworks,
    permit_auth_destination,
    permit_sasl_authenticated,
    reject

TLS configuration
[/commented area end]



smtpd_use_tls = yes
smtpd_tls_key_file = /etc/pki/tls/private/ssl.key
smtpd_tls_cert_file = /etc/pki/tls/cert/ssl.crt
smtpd_tls_loglevel = 3
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom

OS: Centos 6.5 iptables disabled

postfix+dovecot.

I can send email, but can’t receive from outside, if i write

echo "This is only a test" | mail -s "Test email sent to local root user" admin

i receive email. Please, help.