At this point, it is necessary to know some basic terms about email marketing and the most commonly used concepts in the area, in order poland customer email list to understand the approach and the professional vocabulary used:
Email-Marketing-Social-Media-Dictionary
50/50 split test: This is a type of A/B test that exposes half of the subscribers to one version and the other half to another version. The reach and effectiveness of both are then evaluated and corrections are applied to future campaigns.

10/10/80 split test : A type of A/B test that exposes 10% of subscribers to one version, the other 10% of subscribers to another version, the best version is evaluated, and then the remaining 80% are sent to the winning version.
A/B testing: This is a method used to evaluate the best performance between both versions. Depending on the tool, various factors are compared, such as the subject, length of the content, number of clicks, colors, images, among others. The duration of this test is usually 24 hours. Once the test is finished, the final results are presented, and the decision is made to select the indicated version.
Attachment: A text, video, graphic, PDF, or sound file that accompanies an email message but is not included in the message itself. Attachments are not effective for sending email newsletters because many ISPs, customers, and recipients do not allow attachments, as many hackers use them to send viruses and other malicious code.