What Is Email Marketing

31 Oct 2025 Updated: 31 Oct 2025
By Bill Robertson
Glossary
Email marketing is how you connect with users directly through newsletters. You send them updates, promos, and offers — and get them back on your site.

How it works:

  1. A user leaves their email — on a site, form, or during signup
  2. The email goes into your list
  3. You send emails like:
    — welcome messages
    — promo codes and bonuses
    — reminders and offers
    — news and tournament invites

Where it’s used:

  • E-commerce stores
  • Online casinos and sportsbooks
  • Affiliate campaigns for repeat sales
  • Online courses and SaaS tools

Why it works:

  • You own the audience — no algorithm limits
  • Great ROI — can go x30 and beyond
  • Full automation possible with email flows
  • You can segment users and personalize content

Example:  A user signs up at an online casino. The next day, they get a welcome bonus by email. Later a reminder about a promo. Then a tournament invite. This keeps them active and boosts revenue.

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