After adding the lines smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/restricted_senders
smtpd_restriction_classes = local_only local_only = check_recipient_access hash:/etc/postfix/local_domains, reject to the file /etc/postfix/main.cf: the server sill not allow anyone to send, but when I remove the smtpd like the servers allows sending Any ideas?