Best Free Email Marketing Software for High‑Volume Senders

Up to 2,000 contacts and 10,000 emails per month, with basic templates, audience segmentation, and simple automation workflows.

Unlimited contacts and 300 emails per day (≈9,000/month). Includes SMS credits, transactional email API, and simple marketing automation.

Up to 1,000 subscribers and 12,000 emails per month. Features drag‑and‑drop editor, landing pages, and basic automation sequences.

Allows 3,500 emails per month to up to 500 contacts. Provides responsive templates, list management, and simple autoresponders.

Unlimited emails to up to 1,000 subscribers. Includes advanced automation, AI‑driven product recommendations, and real‑time analytics.

Up to 2,500 subscribers and 15,000 emails per month. Offers drag‑and‑drop editor, automation, and detailed reporting.

Up to 6,000 emails per month (200 per day). Includes email editor, transactional API, and basic segmentation.

Up to 15,000 emails per month to 500 contacts. Features multi‑channel messaging (email, SMS, web push) and simple automation.

10,000 free emails per month for the first 3 months, then 5,000/month. Focused on transactional email API with robust deliverability tools.

62,000 outbound emails per month when sent from an EC2 instance (or 100 emails/day via SMTP). Pay‑as‑you‑go pricing after free quota.

Up to 30,000 emails per month for the first 30 days, then 100 emails/day thereafter. Real‑time analytics and AI‑based deliverability monitoring.

Up to 100,000 emails per month with a 2,500‑contact limit. Includes email API, SMTP relay, and basic campaign reporting.

Up to 2,000 contacts and 12,000 emails per month. Integrated with Zoho CRM, drag‑and‑drop editor, and basic automation.

Unlimited emails to up to 2,000 contacts. Includes CRM integration, personalization tokens, and simple workflow automation.

Up to 100 emails per day (≈3,000/month). Offers robust API, SMTP relay, and basic email analytics.

Up to 1,000 contacts and 4,000 emails per month. Provides email editor, automation, and detailed performance reports.

Unlimited contacts and 12,000 emails per month. Features drag‑and‑drop builder, basic automation, and GDPR‑compliant forms.

Designed for testing, offers 500 emails per month in a sandbox inbox. Ideal for developers needing safe email previews before live sends.

Up to 12,000 emails per month with API and SMTP. Focuses on transactional and marketing emails with real‑time analytics.

Separate free tier for transactional emails: 300 emails per day with API access, deliverability monitoring, and webhook support.