My MX records point to Google Apps and my mail was working perfectly for 2 years or more. Then the other day it stopped working. I managed to figure out that it was a DNS problem and reset my MX records, but it's a bit spooky that this happened. The MX records were deleted and replaced by the defaults.
Should I be worry that my Godaddy account was hacked? Complain to someone?
Edit: For discussion-o-GoDaddy purposes, DNS was reset on the 27th, 28th or 29th of September.