can we send an Automatic notification to the referral agent?

Hello

we would like to have an Automatic notifications to Agents - upon changes in each step or some main steps of the candidate.

is it possible to send to the agent who referred the candidate? can we use this expression - {ReferrerHeader.Email} cand once the agent refers a candidate and the candidate reaches steps we define in the condition - send the notification to the agent ? using the expression above?

See attached file - with same type of notification to a recruiter (upon changes in candidate steps).

Thanks a lot

Revital.