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MailSift
Email verification for developers, in one fast API call
MailSift helps developers stop invalid, disposable, relay, typo, role-based, and risky emails before they enter a product or campaign. One API response combines 15+ checks with a 0–100 trust score in under 100 ms. Verify a single address, process CSV lists, or integrate through the API. Start with 500 free checks; paid credits never expire.
Hey Product Hunt 👋
MailSift is built around a simple idea: developers should be able to decide whether to trust an email address without stitching together DNS lookups, disposable-domain lists, and brittle rules.
One API call checks syntax, MX records, disposable and relay providers, role addresses, domain age, SPF/DMARC, typos, catch-all behavior, and more. The result includes structured signals plus a 0–100 trust score, typically in under 100 ms.
You can verify single addresses, clean CSV lists in bulk, or integrate directly into signup and lead workflows. Start with 500 free checks, and purchased credits never expire.
I’d especially love feedback on the API response, trust scoring, and which integration you’d like us to build next. Thanks for checking out MailSift!
About MailSift on Product Hunt
“Email verification for developers, in one fast API call”
MailSift was submitted on Product Hunt and earned 8 upvotes and 5 comments, placing #145 on the daily leaderboard. MailSift helps developers stop invalid, disposable, relay, typo, role-based, and risky emails before they enter a product or campaign. One API response combines 15+ checks with a 0–100 trust score in under 100 ms. Verify a single address, process CSV lists, or integrate through the API. Start with 500 free checks; paid credits never expire.
On the analytics side, MailSift competes within Email, API and Developer Tools — topics that collectively have 651.4k followers on Product Hunt. The dashboard above tracks how MailSift performed against the three products that launched closest to it on the same day.
Who hunted MailSift?
MailSift was hunted by Freddie Developer. 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.
For a complete overview of MailSift including community comment highlights and product details, visit the product overview.
Freddie Developer