Bulk mailing, as the name suggests, is nothing but sending postal mails in bulk or large quantities. Bulk mailing is usually employed by small to large-scale companies that use postal mail as one of their major communication methods. The bulk mail approach is a favourite among many businesses because sending postal mail in large quantities entitles you to discounts and other benefits from the postal service providers. Furthermore, direct mail has a higher chance of getting a positive response from its recipients and a much higher ROI (Return on Investment) than many mainstream marketing strategies. Generally, a company or business that employs bulk mailing sends out hundreds and thousands of direct mail items regularly.