Sending mail to gmail from sap PO7.40

Hi,

I am using SAP PI7.40 java single stack and I configured file to email where I tried to send mail to gmail account and getting the below mail.

Exception caught by adapter framework: Failed to call the endpoint

Transmitting the message to endpoint <local> using connection File_http://sap.com/xi/XI/System failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: com.sap.aii.af.sdk.xi.srt.BubbleException: Failed to call the endpoint  [null "null"]; nested exception caused by: java.io.IOException: server does not support PLAIN or LOGIN authentication

Could you advice is there any basis or NWA set-up needs to be done to send mail to gmail? I am able to send mail to internal domain ID's successfully.

Thanks,

Dhill