550003: Source connection failed

Unable to connect to the data source with the given configuration.

• Invalid or expired credentials.
• Network connectivity issues between Twilio and the data source with the given host/port.

• Verify that the credentials provided are correct and have not expired.
• Check that the data source is accessible from the network and that any firewalls or allowlists permit Twilio's IP ranges.
• Review the source configuration for incorrect connection parameters.