+#------------------------------------------------------------------------------
+# Internationalisation.
+#
+# Uncomment the following to include Internationalisation features. This is the
+# SMTPUTF8 ESMTP extension, and associated facilities for handling UTF8 domain
+# and localparts, per RFCs 5890, 6530 and 6533.
+# You need to have the IDN library installed.
+
+# SUPPORT_I18N=yes
+# LDFLAGS += -lidn
+