Email verification API · 99.6% accurate · Real-time
Stop losing revenue to invalid emails. PilotVerify's real-time email validation service delivers 99.6% accuracy with sub-100ms response times — so your messages always reach real inboxes. Clean your email list, reduce bounce rates, and improve deliverability starting today.
Try our free email verifier
Features
Our multi-layered email verification engine checks every address at every level — from format to mailbox existence — so you can trust your data completely.
Instantly check whether an email address follows RFC 5322 formatting standards. Supports Unicode domains and catches typos before they reach your database.
Confirm that the recipient's domain has active mail servers configured and is capable of receiving email — a critical step in reducing hard bounces.
Deliverability
The other half is the domain you send from. PilotVerify checks your DNS and authentication, watches the Spamhaus blocklists, and turns the DMARC reports receivers already send into something you can read.
Explore the deliverability toolsVerification strips dead addresses, spam traps and typo domains before a send, so your bounce rate stays where mailbox providers expect it.
Get MX, SPF, DKIM, DMARC and MTA-STS right once, and receivers start treating your authenticated mail as authenticated mail.
Reputation decays between campaigns. A Spamhaus listing, an expired DKIM key or a new sender spoofing you becomes an email to you, not a quarter of missing replies.
Customers
Here's what our customers say about PilotVerify's email verification API and deliverability tools.
“PilotVerify cut our bounce rate from 12% down to under 1% in the first week. The API integration took less than an hour and the documentation is excellent. Hands down the best email verification service we've tried.”
“We validate over 50,000 new sign-ups every month using PilotVerify. The real-time API is blazing fast and the disposable email detection alone has saved us from thousands of fake accounts. Highly recommended.”
“As someone running cold email outreach at scale, list hygiene is everything. PilotVerify's bulk validation gives me clean lists every time. The pricing is fair and credits never expire — exactly what I needed.”
“The catch-all detection feature alone is worth the price. We were wasting budget emailing catch-all domains that never converted. PilotVerify helped us segment those out and our open rates jumped 18%.”
Recognition
PilotVerify is recognized by the world's leading software review platforms for accuracy, reliability, and developer experience.
Recognized for consistent delivery excellence and customer satisfaction.
Highly rated by verified software users for performance and ease of use.
Trusted by thousands of businesses with an Excellent rating on Google Reviews.
Pricing
No subscriptions. No monthly fees. No hidden charges. Buy credits once and use them at your own pace — they never expire.
Credits are for cleaning a list. The monthly plans below are a separate thing — they watch the domains you send from. Neither one requires the other.
Full pricing and feature comparisonDeliverability plans
Credits clean a list; these plans keep watch afterwards. Each one covers the email server and DNS test, Spamhaus blacklist monitoring and DMARC aggregate reporting for a set number of domains and IPs.
Compare every planBlog
Stay ahead with expert guides on email deliverability, API integration, and email list hygiene strategies.
Browse all articlesIntegrations
Connect PilotVerify's email verification API to the marketing platforms, CRMs, and email delivery services your team already uses. With support for 60+ integrations — including Mailchimp, HubSpot, Salesforce, Zapier, and more — cleaning your email lists has never been easier.
Whether you need real-time validation on sign-up forms or bulk email list cleaning before a campaign, PilotVerify fits into your existing workflow in minutes.
Browse all integrationsFAQ
Everything you need to know about our email validation service
Join thousands of developers and marketers who use PilotVerify to reduce bounce rates, block fake sign-ups, and reach more real inboxes. Get started with 1,000 free verification credits today.
Block throwaway addresses from fake signups. Our continuously updated database flags temporary email providers so only genuine users enter your list.
Get verification results in under 100ms on average. Perfect for validating emails at point-of-entry on sign-up forms, checkout pages, and lead capture.
Go deeper with optional SMTP verification. We connect directly to the mail server and confirm the mailbox exists — without sending a single email.
Upload CSV files with thousands of email addresses and get a clean, validated list back in minutes. Ideal for list hygiene before major campaigns.
Identify domains that accept every incoming email, regardless of whether the mailbox exists. Know your deliverability risk before you hit send.
Integrate in minutes using our developer-friendly REST API. Full documentation, code samples in 10+ languages, and instant API key access after signup.
Monitor your validation history, credit usage, success rates, and deliverability insights from a clean, real-time dashboard built for teams of all sizes.
MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI and reverse DNS, scored out of 100 with a prioritised fix list.
“We evaluated four email verification APIs before choosing PilotVerify. The accuracy, speed, and developer experience are unmatched. Support is responsive and the team actually listens to feature requests.”
“Simple pricing, no monthly fees, and credits that roll over — that's rare in this industry. We've been using PilotVerify for 8 months and it's become a core part of our data pipeline.”
Processing 100,000 emails for verification isn't just a bigger version of processing 100. Here's the architecture, code patterns, and error handling strategies that make bulk email verification reliable at any scale.
Read moreEverything you need to see where you stand, with no card and no trial clock.
Start freeFor one sending domain you actually care about, plus the IPs behind it.
Subscribe to StarterFor teams sending from several domains who need the data in their own tools.
Subscribe to ProFor agencies and MSPs watching deliverability on behalf of clients.
Subscribe to Agency10,000 validation credits every month plus every Pro deliverability tool, on one bill.
ZeroBounce ONE lists at $99/month and includes 1 DMARC domain and 10 blacklist monitors (September 2026).
Subscribe to Complete