Here is a Flagged Addy List I got from BB4L. CHeck it out...Make sure to take note that not everything listed is not a ".COM" These are shipping addy's that you more than likely never gave any thought to...Better Safe than sorry.
If you have gotten anything from ANY of these Addy's, you should probably clean house if you don't keep a clean one already.
TSW
http://www.fda.gov/ora/fiars/ora_import_ia6657.html