Sending: add seed list that goes out with first batch
We have a 'seed list' for almost every bulk email we do. This is a list of employees/partners of our company that need to get a copy of the email whenever it goes out. Currently, we need to create a separate send to this list to ensure that it goes out when the delivery begins, rather than randomly during the x-hour throttle period. It would be nice to be able to 'Select seed list:' and include a list of contacts that will get the email when the delivery is first started.