Munich’s airport site is pretty good and very efficient – except for locating postal services. It’s not like Frankfurt where you’ll probably run into three mail drops before security. Fortunately here are some good services at the airport.
I found one mail drop near the post office in the Munich Airport Center; however, if it’s anything like Frankfurt they are probably around pre-security. Look for the Deutsche Post sign.
There’s a post office in Terminal 1, level 3 in the Munich Airport Center – look around the Car Rental Center and you’ll see a circular restaurants/shops area; it’ll be in that circular area.
Airport Map (the PDF is below if you get frustrated with the interactive map)
Last updated 16 July 2017