[juano76x]

Out of curiosity, has anyone ever done DNA on envelopes?

I've saw a nice product online which I want to SE and then saw that they deliver it per envelope.
As far as I could find out, there is no tracking number or signature needed, so they just drop it in your mail box (like a usual envelope).

Isn't this literally the best option for DNA?

Where did you read the information about the item being delivered per envelope. Also mind saying what company was it? Thanks