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Reloop Temp Email Checker
Block disposable emails & protect your sender reputation
Free temp email checker. Paste an email, Instantly see if it’s a known throwaway (Mailinator, Yopmail, Temp-Mail, and ~210k domains), a role address, or has MX with no signup, no API key, and no SMTP probing. Free public API for signup protection.
Hey Product Hunt, I'm Twinkal, co-founder of Reloop.
We noticed a common problem: People sign up for SaaS products and newsletters with throwaway emails that vanish within the hour. The result: hard bounces that hurt your domain reputation, skewed signup metrics, fake trial accounts, and wasted transactional sends.
So we built a free Temp Email Checker It checks:
- Valid email format (RFC syntax)
- Known disposable domains (~210k, updated daily)
- Generic role prefixes (admin@, info@)
- Working mail servers (MX lookup)
We never probe the actual mailbox, just clean, surface-level checks. No sign-up needed, and there's a public POST API you can drop into your registration flow.
Try it: https://reloop.sh/tools/temp-ema... (test with [email protected])
We'd love your feedback:
- What other checks would make this more useful for your signup flow?
- What other developer utilities would help your deliverability workflow?
Thanks for checking it out! 🚀
Thanks for offering a free API for temporary email detection! Most people charge for such a useful tool, and it helped me reduce spam signups. Love the tool, Reloop! ❤️
About Reloop Temp Email Checker on Product Hunt
“Block disposable emails & protect your sender reputation”
Reloop Temp Email Checker was submitted on Product Hunt and earned 11 upvotes and 2 comments, placing #33 on the daily leaderboard. Free temp email checker. Paste an email, Instantly see if it’s a known throwaway (Mailinator, Yopmail, Temp-Mail, and ~210k domains), a role address, or has MX with no signup, no API key, and no SMTP probing. Free public API for signup protection.
Reloop Temp Email Checker was featured in Email (36.8k followers), Open Source (68.9k followers), Developer Tools (520.4k followers) and GitHub (41.4k followers) on Product Hunt. Together, these topics include over 140.2k products, making this a competitive space to launch in.
Who hunted Reloop Temp Email Checker?
Reloop Temp Email Checker was hunted by Twinkal Patel. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Reloop Temp Email Checker stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Twinkal Patel