I am looking to complete an email drip campaign that has a workflow that can send automated email response to prospects who have no affiliation to SharePoint, just have their contact email in a list. I know that you can send these automated templates replies using "Alerts" to internal people and even to people who have external user license using "Smart Alert Pro".
Although to my knowledge you cannot set up an email drip like this to someone who has not signed in their external user license. I do not want to sign up prospect's for external user's license, that is backwards.
So how can I automate the follow up lead emails pertaining to fields like "Created By" to a non external user license email address's.