I'd like to update a datetime field in the Leads module when the record owner initially reaches out to a lead via email. We have some automated emails being sent out from the organization email, so I can't trigger a workflow based on the first email sent. I need the condition to be the sender matching the record owner. Is this possible through the email conditions wizard, or do I need to script a deluge function?

Attached was my first attempt. I've seen in other places within zoho I can use the curly brackets to refer to fields even if there's no pop-up using the # sign. However it looks like I may not be able to reference another field in this condition.