src/DNS.hs: update a test, example.com now has a NULLMX record.
-rw-r--r-- 46 Setup.hs
drwxr-xr-x - doc
-rw-r--r-- 4232 haeredes.cabal
-rw-r--r-- 1214 makefile
drwxr-xr-x - src
drwxr-xr-x - test