Opt-In (or Subscribe)

To opt-in or to subscribe to an email list means that you choose to provide your email address to a particular company, website or individual in order to receive their email communications. If you decide to subscribe to a list, you should know that you are automatically granting them permission to email you. You may have already noticed that sometimes you are also presented with some additional questions that focus on your area of interest or the type of emails you would like to receive. Please keep in mind that this is a practice created for a more personalized approach to email. 
Email Spam PreventionEmail DeliverabilityEmail Marketing