Email verification.
Find valid emails, protect your sender reputation, and boost open rates — instantly, with zero manual work.
No code needed
Upload your list.
We do the rest.
Drag in a CSV, Excel, or TXT file. We clean, dedupe, and verify every address — no API integration required.
Drop your file here
.csv · .xlsx · .txt — up to 1M rows
Developer API
One endpoint.
Eight checks.
Drop into your stack in under 5 minutes. The most affordable email verification API on the market.
// axios const response = await axios.post( 'https://graph.emailsbit.com/v3.0/inbox/check', { email: '[email protected]' }, { headers: { 'Authorization': API_KEY } } ); const { valid, checks } = response.data;
List quality insight
23% of your list
may be
bad.
Based on 5 billion emails checked. Nearly 1 in 4 addresses in a typical campaign list is invalid, risky, or dangerous.
Pricing
How many emails
do you have?
Adjust the quantity and see the price update instantly.
Free trial
100 free
validations.
No credit card. No expiration. Start cleaning your list right now.
Deliverability
99%
after
cleaning.
Remove every bad address before it damages your sender reputation. Gmail and Outlook watch your bounce rate closely.
Start cleaning8
Checks per email
99.7%
Accuracy rate
200ms
API response
23%
Avg. bad addresses found
Under the hood
Every address goes through a full multi-layer pipeline before it reaches your sender infrastructure.
Domain & SMTP
Validates ISPs and removes emails with inactive, parked, or invalid domains.
Spam trap detection
Cross-references known trap databases to protect your sender reputation score.
Disposable email
Identifies temporary addresses with short lifespans so your messages reach real people.
Catch-all domains
Spots domains that return valid for all addresses — a common source of wasted sends.
Syntax validation
Removes all addresses with invalid format. Integrates at the point of capture.
Hard bounce check
Sends undetectable handshakes to confirm the inbox actually exists and can receive.
MTA validator
Validates MX records on every call to confirm a mail server is ready to accept.
Duplicate removal
Detects and removes all duplicate addresses so you never pay for the same email twice.
API
One endpoint. Eight checks. The cheapest email verification API. Drop into any stack in under 5 minutes.
Accurate bulk email validation shouldn't cost a fortune.
"Easy to use and fairly priced for the service it provides. I've never run into any issues when using the service."
Gabriela S.
Business Development Coordinator
"Our delivery rates jumped to 99.6% so the ROI of our email campaigns keeps growing. The pricing is incredible compared to other tools."
Maros K.
Head of Marketing, Mangools
"Test of accuracy after the first list delivery: over 99.7%. That's exactly what we needed, so we're very pleased with the results."
Joe R.
Marketing and Advertising
Ready?
100 free validations. No credit card. Cancel anytime.
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