Since I work for the post office now, I am in constant contact with people and their mail so this is not very reassuring for me 
I know you can't get the virus from handling mail and parcels but it's so dirty that your hands and arms can turn shades of black before you get a chance to wash it off 
This type of virus doesn't survive being dry, so there is a limited amount of time that it can be transferred on a object.
When someone hands you the mail or package would be the time it could transfer, or if they cough or sneeze when at the counter.
If you can still get stuff like purell in your area you should have some to sanitize your hands often, and avoid touching your face.
Conflicting reports on just how bad this is if you catch it, from zero symptoms to deadly. How many people that get a cold go to the hospital? Right now the only cases getting tested are people that have it bad enough to go to the hospital, that skews the numbers towards the more deadly side.