All-in-one workspace for notes, docs and projects, with Notion AI.
ProductivityFree
Mailtester Ninja
Free tierMailTester.Ninja is a free and easy-to-use email checker that verifies or finds any address.
Productivity
What it does
MailTester.Ninja is a free and easy-to-use email checker that verifies or finds any address.
In their own words: Free email checker & verifier: instantly check if an email address is valid and deliverable. Cut your bounce rate and protect sender reputation. No signup, nothing stored.
It's a productivity tool. A free tier lets you try it before paying — useful when you're keeping costs low. Visit the website for the latest features and pricing.
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Productivity
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Free tier + paid plans
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