Error Sending Email via Batch Mode

[alvoholic]

Hi, I created a workflow to send email, I ran it on the knime application and it was sent successfully with no errors.
But when I run it via batch mode using Windows Task Schedule there is an error as below

I checked ports and other nodes no problem.
Can someone explain why it is like that and how to solve it?

[alvoholic]

It’s resolved, it’s caused by unstable network and the smtp server is not responding

[ScottF]

Thanks for posting the resolution!