Heroku and ip mask

Question

I\'m building a shopping site which uses a service which allows credit card payments (tranzilla), the service is requiring an IP or IP mask from which it will allow requests

Answer 1

There is now a new Heroku add-on called Proximo that gives you a static outbound IP address to connect to services with IP whitelists! At this time it's in private beta, and there is no pricing info available yet, but it seems like a promising solution: https://devcenter.heroku.com/articles/proximo