Postilion provides banking transaction switching software that routes financial transactions. Most of the time Postilion switch software servers are set up in a relatively simple fashion, whereby transactions flow into the switch, which then sends them through to their appropriate destination (per the image below).

What is Postilion system?

Postilion is a fully integrated System Suite, consisting of various product modules utilised by financial institutions and payment processors for secure card acquiring, transaction routing and authorised clearance of payments. ... This includes expertise working with all the various modules and Back Office of Postilion.

What is Postilion in banks?

Postilion is a fully integrated self-service channel solution for banks and credit unions: Online retail banking: services include account balance inquiries, transfers, bill payments, ATM personalization and user alerts.