Connections > Marketo V3 connection properties > Proxy server settings
  

Proxy server settings

If your organization uses an outgoing proxy server to connect to the Internet, the Secure Agent connects to Informatica Intelligent Cloud Services through the proxy server.
You can configure the Secure Agent to use the proxy server on Windows and Linux.
You can use the unauthenticated or authenticated proxy server. You can configure proxy for connections used both in mappings and in mappings in advanced mode.
To configure the proxy settings for the Secure Agent, use one of the following methods:
To bypass the proxy server settings defined for the Secure Agent, select Bypass Proxy in the advanced settings for the connection.