Your contact database will naturally decay over time. Which strategy would be considered an inbound approach to replenishing your database?
Trading your leads contact information with another business in your industry so that you can both send more email.
Send an email to everyone who has unsubscribed from your emails with the goal of getting them to resubscribe.
Lead generation using landing pages with helpful information and a form.
Buying monthly lists of ideal customers’ email addresses.
https://www.youtube.com/watch?v=IxcF2InDAR4