ROI

It is the name of the percentage that indicates the return on a particular investment. It is measured with certain metrics included in marketing campaigns, and enables measurement of sales rates and campaign success.

Opt-in
(Subscribe)

It is the process of obtaining e-mail addresses from prospective or current customers, to have their consent to access their information, through e-mail forms, forms on the website or special advertisements in order to have a large and efficient e-mail list, which is...

Opt-Out
(or Unsubscribe)

Cancellation or waiver by the recipient of the subscription consent obtained through the website, e-mail or forms included in the advertisements is called opt-out (unsubscribe).

Bulk Mail

E-mails sent to a large audience in bulk are called bulk mail. For example, you want to send an e-mail with a New Year message to the target audience of your business. If you send a New Year Celebration e-mail to all the contacts on your e-mail lists, you will be...