untrusted_set_sender = *
+# Some spam scanners (*cough* irritated *cough*) want the Sender field
+# to exist. Appease them by not actually adding a Sender field.
+
+local_from_check = false
+
# Some operating systems use the "gecos" field in the system password file
# to hold other information in addition to users' real names. Exim looks up
# this field when it is creating "sender" and "from" headers. If these options