Stuff

smtpd_helo_required = yes
disable_vrfy_command = yes

smtpd_recipient_restrictions =
        reject_invalid_hostname,
        reject_non_fqdn_sender,
        reject_non_fqdn_recipient,
        reject_unknown_sender_domain,
        reject_unknown_recipient_domain,
        permit_mynetworks,
        permit_sasl_authenticated,
        reject_unauth_destination,
        check_policy_service inet:127.0.0.1:60000
        check_recipient_access pcre:/etc/postfix/recipient_checks.pcre,
        check_helo_access hash:/etc/postfix/helo_checks,
        check_sender_access hash:/etc/postfix/sender_checks,
        check_client_access hash:/etc/postfix/client_checks,
        check_client_access pcre:/etc/postfix/client_checks.pcre,
        reject_rbl_client bl.spamcop.net,
        reject_rbl_client blackholes.mail-abuse.org,
        reject_rbl_client relays.ordb.org,
        reject_rbl_client sbl.spamhaus.org
        permit

smtpd_data_restrictions =
        reject_unauth_pipelining,
        permit

parent_domain_matches_subdomains = 

smtpd_banner = ESMTP 
biff = no
append_dot_mydomain = no
myhostname = (mail.mydomain.com)
transport_maps = hash:/etc/postfix/transport_maps
alias_maps = hash:/etc/aliases
default_transport = smtp
myorigin = /etc/mailname
mydestination = $myhostname
mynetworks = 127.0.0.0/8, XX.XX.XX.XX
virtual_alias_maps = mysql:/etc/postfix/mysql-alias
#relay_domains = domains we are backup MX for
virtual_mailbox_base = /var/mail/
virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-domain
virtual_mailbox_maps = mysql:/etc/postfix/mysql-account
virtual_uid_maps = static:999
virtual_gid_maps = static:999

proxy_read_maps =       $transport_maps
                        $relay_domains
                        $virtual_mailbox_domains
                        $virtual_mailbox_maps
                        $virtual_alias_maps
                        $relay_recipient_maps
                        proxy:unix:passwd.byname

bounce_size_limit = 16384
#relay_recipient_maps = mysql:/etc/postfix/mysql-alias-check, mysql:/etc/postfix/mysql-account-check
soft_bounce = no

smtp_sasl_auth_enable = no
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain = 
smtpd_sasl_auth_enable = yes
smtpd_tls_auth_only = no

mailbox_command =
mailbox_size_limit = 102400000
message_size_limit = 102400000
virtual_mailbox_limit = 102400000
recipient_delimiter = +
content_filter = smtp-amavis:[127.0.0.1]:10024
unknown_local_recipient_reject_code = 450