Keep Customer Emails Reaching Inboxes

Invalid email addresses at checkout mean lost order confirmations, failed cart recovery, and damaged sender reputation. Verify at the point of entry — before invalid addresses ever touch your database.

Built for E-Commerce Email Reliability

From checkout validation to list hygiene, VeriMails keeps your customer data clean and your transactional emails delivered.

Real-time Signup Validation

Verify email addresses the moment a customer registers or checks out. Return a clear error before form submission if the address is invalid, disposable, or has syntax errors.

Block Fake Account Signups

Disposable email services like Mailinator and Guerrilla Mail are a common vector for promo abuse and fake accounts. Block them automatically at registration before they enter your system.

Protect Transactional Deliverability

Order confirmations, shipping notifications, and password resets are mission-critical. A clean email list keeps your transactional sending infrastructure healthy and out of spam filters.

Improve Cart Recovery Performance

Cart abandonment campaigns only work if the email address is real. Verify addresses during checkout to make sure your recovery sequence reaches actual shoppers.

Clean Existing Customer Lists

Run your entire customer database through bulk verification to identify stale, invalid, and undeliverable addresses before your next campaign or re-engagement series.

Reduce ESP Costs

Most email service providers charge by list size or email volume. Removing invalid and unengaged addresses reduces your monthly bill and improves engagement metrics — both for pricing and deliverability algorithms.

Three Ways to Keep Your Customer List Clean

Integrate verification at checkout, block bad addresses on entry, and run periodic hygiene on your existing database.

01

Add API call to your checkout

Integrate the VeriMails API into your checkout or signup form. One GET request returns a full verification result in under 2 seconds — invisible to the customer.

02

Flag or reject invalid addresses

Use the API response to block disposable addresses, show inline errors for syntax failures, and flag suspicious entries for review before they reach your database.

03

Run periodic list hygiene

Schedule monthly bulk verification runs on your full customer list to catch addresses that have gone stale since signup. Keep your list clean on an ongoing basis.

35%
Reduction in Fake Account Signups
99.2%
Email Delivery Rate on Verified Lists
2–5×
ESP Cost Reduction from List Cleaning
Sub-2s
Checkout Validation Response Time
“We added VeriMails to checkout and saw fake account signups drop by over 30% in the first week. Order confirmation deliverability went from 87% to 99%.”
Sarah M., E-Commerce Director at Online Retail Marketplace, Germany

Frequently Asked Questions

No. The VeriMails API responds in under 2 seconds per address, which is imperceptible in a checkout flow. Most implementations add zero noticeable latency.
Block them. Disposable addresses have no long-term value for an e-commerce business — they can't receive order confirmations, marketing emails, or loyalty program updates. Blocking at registration is standard practice.
Use our REST API. Make a GET request to /verify with the email address and check the status field in the response. Works with any platform that supports custom checkout scripts or plugins.
Run a full list verification every 3–6 months, and before any major campaign. Email addresses decay at roughly 2–3% per month — a list you haven't cleaned in a year could have 20–30% invalid addresses.

Start Verifying Customer Emails Today

Start free with 100 credits. No credit card required.