# domain_query = "SELECT DISTINCT domain FROM alias;"
-# The name of a mail exchange, the forwards of whose domains we should
+# The name of a mail exchanger, the forwards of whose domains we should
# ignore. For example, if one mail exchanger, mx1.example.com, has
# strict spam filtering, it may be acceptable to have remote forwarding
-# for domains that have mx1.example.com as their mail exchanger (MX
+# for domains that have mx1.example.com as their sole mail exchanger (MX
# record). In that case, you might want to exclude those domains from
# the report, by naming mx1.example.com here.
#
+# A forward will be excluded from the report only if *all* of its MX
+# records are contained in the given exclude list.
+#
# Default: [] (empty)
#
# exclude_mx = ["mx1.example.com"]