Mailchimp

Mailchimp dominates the small business email space due to its straightforward drag-and-drop campaign builder and approachable automation tools. The free tier supports low-volume senders without upfront costs, making it a natural starting point for startups testing their audience engagement. Beyond basic campaigns, you can build behavior-triggered sequences and segment lists based on subscriber activity.

The platform's popularity means abundant templates, integrations, and community support. Whether you're sending monthly newsletters or abandoned-cart reminders, Mailchimp handles both without complexity that slows you down.

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