Check out this great article from Eloqua, that provides tactics for reclaiming your lost contacts, both bouncebacks and unsubscribes.
The article covers the four types of lost contacts: Soft Bounce, Hard Bounce, List Unsubscribe and Global Unsubscribe; and lists some really great strategies for dealing with each type.
Opt-in emails are so prevalent these days that it really is essential to have up-to-date and usable email addresses in your
Have any questions about implementing these strategies, or cleaning your data? Get in touch!