We handle mail fulfillment for a number of clients. Whether it is a welcome letter to a new customer, a renewal letter, or even a past due notice, clients securely send us data files and we get the appropriate materials out within 48 hours.
Some of our clients have "nurture" campaigns for new leads and active subscribers. The letters, brochures, postcards, and self-mailers are sent at predetermined intervals as shown below. There is also an email program for leads and active subscribers that dovetails with the mailings.