4 ms·If I write just an EirCode on an envelope the letter would be delivered anyways.by pshirshov 4y agoIf I write just an EirCode on an envelope the letter would be delivered anyways.closewith 4y agoAre you sure? It might be a case of someone in the system Googling the address and writing it in.pshirshov 4y agoI've tried to do that several times, it always worked. I don't know why/how but it works.