Review the first sends, then let Reach run the cadence and follow-ups for you.
Open ReachLink the account you send from. Reach sends on the official API, so it counts as real mail from you.
Reach shows the exact messages queued for the first send. Approve them so nothing goes out you did not see.
Once approved, Reach sends touch one and schedules the rest on the spacing you set.
Reach detects replies, pauses the sequence for anyone who answers, and keeps the rest moving.