Technology / Email / Opt-In: A specific, pro-active, request by an individual email recipient to have their own email address placed on a specific mailing list. Many list renters and buyers now require list owners to provide proof of opt-in, including the actual email or IP address date and time the request was received.
Technology / Email / Verified Opt-In: Formerly known as double opt-in. Requires secondary confirmation from an email address to confirm intended registration to receive email. MORE
Technology / Email / Confirmed Opt-In: Inexact term that may refer to double-opt-in subscription processes or may refer to email addresses which do not hard bounce back a welcome message. Ask anyone using this term to define it more clearl MORE
Business / Internet Marketing / Opt-In Email: Email that is explicitly requested by the recipient. MORE
Technology / Email / Double Opt-In: A process that requires new list joiners to take an action (such as clicking on an emailed link to a personal confirmation page) in order to confirm that they do want to be on the list. Sometimes inte MORE