Email Marketing Affiliate Programs: A Complete Guide for Publishers in 2026

Email marketing is an ever-important channel for businesses to build relationships and drive leads and conversions. As more organizations invest in customer acquisition and marketing automation, publishers and affiliate marketers can benefit from this demand by promoting email marketing platforms and services and earning a commission for every sale. Email marketing affiliate programs can be a great source of income for publishers. This is because email marketing solutions are in demand by businesses of all sizes and from various industries. In this article, we’ll take a closer look at how email marketing affiliate programs work and what factors you should consider when selecting a network and tracking leads. We also discuss how Vellko can assist you in finding the best performance marketing opportunities in the niche in 2026.