SendX is an email marketing platform with newsletter, campaign, and automation features for businesses that need subscriber communication without building internal sending infrastructure. Its affiliate program offers a direct Join Affiliate Program call to action and lists commission rate, active affiliates, cookie duration, dedicated affiliate support, marketing materials, and recurring commission language. While email marketing is a known SaaS category, SendX is a more specific merchant candidate than the largest mainstream platforms. It fits publishers covering email deliverability, creator newsletters, small business marketing, and bootstrapped SaaS growth.