# for all configuration options.
#
###########################################################################
+
+# The SMTP of utwente are trusted and regarded as internal, so received header
+# DNS checks with -lastexternal check the address before utwente instead of the
+# utwente adresses. Also add kat to this list, since she fetches and resends
+# mails.
+
+# Note that by not setting trusted_networks, all internal_networks are also
+# trusted (which is what we want)
+
+# utwente MX
+internal_networks 130.89.2.0/24
+# utwente mailboxes
+internal_networks 130.89.5.0/24
+# SNT mailservers (at least 130.89.175.26 is one, that delivers for *.student.utwente.nl)
+internal_networks 130.89.175.0/24
+# kat
+internal_networks 130.89.168.160/32