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Why did I get the error "Unable to connect to host:"?

You can't connect to host:

The endpoint has been deprecated and is no longer valid.

Update your application to either the latest version of the Payflow SDK or to the HTTPS interface. Ensure that you're using the correct endpoint for posting your transactions to the Payflow servers. Use the following host addresses for sending Test and Live transactions:
  • Live transactions -
  • Testing purposes -

You'll find the most current SDKs at
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