: Built from people who have already shown interest in a specific category (e.g., catalog buyers, magazine subscribers).
: Avoid generic mass emails; use list segmentation (industry, job title, etc.) to ensure the content is actually relevant to the recipient. Pros & Cons When You Buy Email Lists - DemandScience mailing list buyers
The legality of buying and using these lists depends heavily on regional laws and the : : Built from people who have already shown
: Send a gentle introductory offer that invites recipients to opt-in to your official list. use list segmentation (industry