.cindex "lookup modules"
.cindex "router modules"
.cindex "transport modules"
+.cindex "authenticator modules"
.cindex "dynamic modules"
.cindex ".so building"
On some platforms, Exim supports not compiling all lookup types directly into
Most, but not all, lookup types can be built this way.
.new
-Similarly, router and transport drivers can be built as external modules.
+Similarly, authenticator, router and transport drivers can be built
+as external modules.
This permits a smaller exim binary, growing only as needed for the
runtime cofiguration.
.wen