What does Listwashing mean?
Listwashing is the process of removing email subscriber addresses from a mailing list upon receipt of a removal request. It ensures that spam or unsolicited emails are not sent to the members of an organization's mailing list.
Techopedia explains Listwashing
Listwashing helps organizations and websites remove email addresses from users that no longer want to subscribe to their mailing lists. Removal requests are received manually or through an automated unsubscribe form.
Users typically send such requests because they feel they are being spammed. The webmaster on the receiving end removes the email address from the list to avoid spam and/or sending emails to unsubscribed users.