Error in Receiver Mail Adaptor

Hi mates,

I get the following error RWB for my receiver adapter.

<i>Mail: error occured: java.io.IOException: server not responding OK to AUTH; 535 5.7.3 Authentication unsuccessful.

Exception caught by adapter framework: Failed to call the endpoint

Delivery of the message to the application using connection AFW failed, due to: Failed to call the endpoint.</i>

What does it mean? Any problem with the SMTP URL that I've provided?

I appreciate ur inputs.

thx in adv

praveen