Diary of a Bad Golfer

This has been out for awhile now, but after having seen National Treasure 2 last night it seemed appropriate.  When you install Exchange 2007 it always installs in the same administrative group - FYDIBOHF23SPDLT.  It also uses a routing group for compatibility, named DWBGZMFD01QNBJR.

What does it mean?  If you shift every letter/number 1 place you get EXCHANGE12ROCKS.