Email validation that stops bounces before they happen.
Real SMTP verification, disposable detection, typo correction — fix your email list before your next send.
Email validation — verify inboxes before your campaign sends.
A hard bounce rate above 2% triggers spam filters at Gmail and Outlook — permanently damaging your sender score. DQVerify finds bad emails before you send, so your campaigns actually land.
- Confirms the mailbox actually exists
- Catches typos before they bounce
- Flags one-time and throwaway addresses
- Keeps generic role addresses out of your lists
- Scores deliverability risk so you can decide
- Clean your whole list before every campaign
Smarty only does addresses. DQVerify does all three in one call.
Single API call
3-in-1 response
POST https://api.dqverify.com/v1/validate
{
"address": "350 5th Ave, New York NY",
"email": "john@company.com",
"phone": "+1 212 555 0101"
}
// ← Returns address + email + phone results
// in one round trip. <80ms.3×
fewer API vendors
to manage
Address, email, and phone validation for every industry.
Bad data looks different depending on your industry. The fix is the same.
Clean data across every customer touchpoint.
"Our email campaigns have improved in terms of deliverability, with a rate of 99%, as well as a better open rate."
M. Dubois · CRM Manager · Fashion Retail
Maximise last-mile delivery success.
"Human error in data input is inevitable. As our database develops, DQE helps us keep our data error rate as low as possible — and our team knows it will just work."
R. Allen · Head of Digital · Fitness & Leisure
Reach every guest. Fill every campaign.
"Since we started using DQE, we have reached a 98% deliverability rate, far exceeding industry standards."
S. Chapman · Head of Digital · Fitness & Leisure
Ship validation in minutes, not sprints.
"DQE is a must-have to give a customer database quality and maintain it in real time. We've doubled the open rate of our emails, thanks in part to better personalised messages."
C. Renaud · Head of Marketing · Technology
Real results from teams using DQVerify data validation.
How customers reduced failed deliveries, bounce rates, and wasted outreach with verified contact data.
From checkout to last-mile delivery — real results from real teams across retail, logistics, hospitality, and engineering.
"Since we started using DQE, we have reached a 98% deliverability rate, far exceeding industry standards."
"Our email campaigns have improved in terms of deliverability, with a rate of 99%, as well as a better open rate."
"The quality of the contact data has improved the conversion rate of credit applications by 2% — and our email open rates jumped by nearly 20% over 12 months."
Based on 39 verified reviews
See what bad data
has been costing you.
Drop in your data, get results in minutes. No sales call, no contract, no setup headaches.