Getting error 'Relay access denied'

At outlook, set port 587 for smtp and 993 for imap at Ubunut LTS.

My configuration is:

    root@server:~# postconf -n

append_dot_mydomain = no

biff = no

broken_sasl_auth_clients = yes

config_directory = /etc/postfix

disable_vrfy_command = yes

dovecot_destination_recipient_limit = 1

inet_interfaces = all

mailbox_size_limit = 0

message_size_limit = 0

mydestination =

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

mynetworks_style = host

myorigin = /etc/mailname

queue_directory = /var/spool/postfix

readme_directory = no

recipient_delimiter = +

relayhost =

smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

smtp_use_tls = yes

smtpd_banner = $myhostname ESMTP $mail_name

smtpd_delay_reject = yes

smtpd_helo_required = yes

smtpd_sasl_auth_enable = yes

smtpd_sasl_local_domain =

smtpd_sasl_path = private/auth

smtpd_sasl_security_options = noanonymous

smtpd_sasl_type = cyrus

smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks,permit smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, defer_unauth_destination

smtpd_tls_cert_file = /etc/ssl/certs/smtpd.cert

smtpd_tls_key_file = /etc/ssl/private/smtpd.key

smtpd_tls_security_level = may

smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache

smtpd_use_tls = yes

virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf

virtual_mailbox_base = /var/vmail

virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf

virtual_mailbox_limit = 0

virtual_mailbox_maps = proxy:mysql:$config_directory/mysql-virtual-mailbox-maps.cf

virtual_transport = dovecot