#------------------------------------------------------------------------------
# See below for dynamic lookup modules.
# LOOKUP_MODULE_DIR=/usr/lib/exim/lookups/
+# If not using package management but using this anyway, then think about how
+# you perform upgrades and revert them. You should consider the benefit of
+# embedding the Exim version number into LOOKUP_MODULE_DIR, so that you can
+# maintain two concurrent sets of modules.
# To build a module dynamically, you'll need to define CFLAGS_DYNAMIC for
# your platform. Eg:
#
# As a strictly transient measure to ease migration to 4.73, the
# WHITELIST_D_MACROS value definies a colon-separated list of macro-names
-# which are permitted to be overriden from the command-line which will be
+# which are permitted to be overridden from the command-line which will be
# honoured by the Exim user. So these are macros that can persist to delivery
# time.
# Examples might be -DTLS or -DSPOOL=/some/dir. The values on the