Last updated July 21, 2026 · 1 min read
Definition
A viral mailer is a promotional email platform that uses viral mechanics — forced ads, downline copying, or forwarding incentives — so campaigns can reach beyond a sender's direct recipients.
When it helps
Viral mailers suit launches and list-building into a page you own. Expect wider, less precise traffic than carefully bought solo ads.
Watch-outs
Amplification can spread weak creative quickly. Keep offers compliant with the mailer's rules and always use tracked landing pages.