Relay access denied (in reply to RCPT TO command)

Hi,

I have a problem with incoming mails. Postfix do not accept from external servers. The response of Postfix is:

mail.domain.com said: 554 5.7.1

Relay access denied (in reply to RCPT TO command)

This is my main.cf configuration file:

smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)

biff = no

append_dot_mydomain = no

readme_directory = no

smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem

smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key

smtpd_use_tls=yes

smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache

smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

myhostname = srv1.mydomain.com

alias_maps = hash:/etc/aliases

alias_database = hash:/etc/aliases

myorigin = /etc/mailname

mydestination = srv1.mydomain.com, localhost

mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128

mailbox_command = /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME

mailbox_size_limit = 0

recipient_delimiter = +

virtual_alias_maps = hash:/etc/postfix/virtual

sender_bcc_maps = hash:/etc/postfix/bcc

sender_dependent_default_transport_maps = hash:/etc/postfix/dependent

home_mailbox = Maildir/

smtpd_sasl_auth_enable = yes

smtpd_sasl_security_options = noanonymous

broken_sasl_auth_clients = yes

smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination

allow_percent_hack = no

any idea??

thanks