Post office in Hanoi

Hello guys,

Where are the post offices available in Hanoi ? I've sent a package in late April and till now it haven't reach my friend's house, so need my friend to enquire at the post office instead.

Thanks in advance.

There are a lot of post-offices in Hanoi, but the biggest is on 75 Đinh Tiên Hoàng str, Hoàn Kiếm dist, in font of Hoan Kiem lake.

Thanks.

I told my friend to take from Buu Dien.
http://www.asiaexplorers.com/vietnam/buu-dien.htm

Is it correct ?

Yes, that's right! it's the biggest post office in hanoi.