An explicit request by the recipient to receive an email or communications.
Opt-in email lists are lists where Internet users have voluntarily signed up to receive commercial e-mail about topics of interest.
When an email list is "opt-in", it means that subscribers to that list have stated that they want to receive promotional messages from designated sites or on selected categories. The list has essentially said, "Yes, I'd like to receive messages on the following..." They've given their permission on the front end, before ever having received one solicitation.
Email containing information or advertising that users have agreed to receiving.
Commercial email delivered with prior permission.
Email mailing list that a user signs up for.
The action a person takes when they agree, by email or other means, to receive communications. It requires a mechanism to encourage and allow people to become recipients.
email that is explicitly requested by the recipient.
Commercial email that is sent to opt in subscribers.
A process for allowing people to request email from you.
Email received based on a user's choice to opt-in, or rather their choice to be on a digital mailing list that (theoretically) is only used to send messages which will be of interest to them. Most opt-in email is advertising. Opt-in email continues to build market share in the online advertising world. More often than not, opt-in is the default and user action, such as a check box, is required to opt-out.
