Okay so this might be a weird question, but maybe one of you knows the answer.

My ex boyfriend has been having his mail sent to my apartment, without my permission. Bank statements, business documents, and now today a certified letter from his dentist (probably because he hasn't paid his bill). Normally I just write "No one by this name at this address" on the envelope and put it back in the mail slot.

Now with the certified letter however - I don't feel like I can pick it up at the post office, since it isn't addressed to me - but I don't feel like chasing him down to let him know he's got the letter. It's not my fault he doesn't have his (pardon my French) together. However, I don't want to get in trouble with credit agencies/debt collectors/business agencies, etc. because of him. We have different names and it's just an address, but still.

Is there a way to block mail from coming to your address? I can't do a change of address form because I don't know where he lives now and I don't want my own mail to get messed up. Do I need to go to the post office and talk to someone (if I can even find the time)?

Thanks in advance.