List of best mirrors for IP address 3.17.59.50, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/raspbian/pool/main/c/courier-unicode/libcourier-unicode-dev_2.3.1+really2.3.1-3_armhf.deb