顺便问一下从Uni这边怎么去机场?作者: SILENCE 时间: 2013-5-21 16:52
I don't think it is ethical to open others mails, even they were sent to your address.
If you can get this person's current address, all you need to do is changing the address on the envelope into the new address and put it back into post without any cost.
On the other hand, changing address into current ones is personal responsibility. I wouldn't worry to much if they remain unclaimed.