I had an envelope in my mailbox w/ $1.10 postage due stamped on it. Since it was delivered, I ignored it. I was waiting for them to say something and I was planning on giving them the envelope back with a note written on it that it was 'metered' at a USPO and if they did not agree with the fee they would need to take that up w/ their fellow PO! I would understand if it was just stamped and dropped in a mailbox but this was metered! I think it is rediculous.