Subscribe to hundreds of curated newsletters automatically. Warm your email, research competitors, train your filters — on autopilot.
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Real newsletters signal to providers that your inbox is active — improving deliverability before you send campaigns.
Subscribe to competitor newsletters simultaneously. Track strategies, funnels, and copy — all in one inbox.
Train Gmail and Outlook filters faster with real categorized email volume instead of synthetic mocks.
Authentic email traffic for testing parsers, spam detection, and automation pipelines — no fixtures needed.
Provide the email address you want newsletters delivered to. Any inbox works.
Choose from 8 curated niches and set how many newsletters you want. Pro plan only.
InboxFlood subscribes automatically. Newsletters arrive in your inbox within hours.
Enter your email, pick a niche, set volume — InboxFlood handles everything automatically.
Free plan · 10 newsletters · No credit card