Edit pg_hba.conf
add a line to allow a connection from your IP address:
host all all 71.56.137.10/24 md5
Edit postgresql.conf
Uncomment listen_addresses line and set to ‘*’
Download Postgresql ODBC driver
Set up ODBC connection
This is the confusing part. If you downloaded a 64 bit driver, you need to launch the ODBC panel that lives in C:/windows/sysWOW64/odbcad32.exe
It looks identical to the other admin panel, and connections will even succeed, but in my case Endicia would only be able to connect if the connection was set up through sysWOW64/
Details here:
http://stackoverflow.com/questions/1954128/how-do-i-connect-to-my-64-bit-sql-server-with-odbc