lookup )
import Data.Maybe ( fromMaybe )
-import Data.Monoid ( Monoid(..) )
import Data.Data ( Data )
import Paths_list_remote_forwards ( getSysconfDir )
import System.Directory ( getHomeDirectory )
import System.FilePath ( (</>) )
import System.IO.Error ( catchIOError )
-import MxList ( MxList(..) )
+import MxList ( MxList(MxList, get_mxs) )
-- | The same as Configuration, except everything is optional. It's easy to
-- merge two of these by simply dropping the Nothings in favor of