anchor.diff:  
   # Local delivery
   biff = no
  -append_dot_domain = no
  +#append_dot_domain = no
   mailbox_size_limit = 0
   recipient_delimiter = +
   home_mailbox = Maildir/
  
positive.code: 
  smtpd_sender_restrictions = reject_unknown_sender_domain
  
  smtpd_relay_restrictions =
      permit_mynetworks
      permit_sasl_authenticated
      reject_unauth_destination
  
  # All restrictions are added already to client check
  # smtpd_recipient_restrictions =
  
negative.code: # TLS
  <%- if @ssl -%>
  smtpd_use_tls = yes
  smtpd_tls_cert_file = /etc/ssl/certs/<%= @ssl %>.pem
  smtpd_tls_key_file = /etc/ssl/private/<%= @ssl %>.key
  <%- else -%>
  smtpd_use_tls = no
  <%- end -%>
  