While trying to get Railroadmills snuff mailed out today, I was informed by my postal worker that she could no longer send snuff through the mail. Businesses with proper paperwork can, but private citizens is a no-go.
Here is a link to the usps regulations I was just slapped in the face with: http://pe.usps.com/text/pub52/pub52c4_024.htm
Damn!