Email verification
Ensure every email address you collect is genuine and able to receive messages – check and validate email addresses in real-time, or cleanse your database in bulk.
What is email verification?
Email verification is the process of checking if an email address exists and is able to receive email messages
Inaccurate email addresses entering your systems can compound over time. Typos, outdated and role-based emails bloat your databases and CRMs – increasing marketing costs, distorting reporting and creating avoidable friction.
Verify email addresses to:
Reduce failed deliveries and hard bounces
Protect your sender reputation and deliverability
Keep your CRM clean, accurate and actionable
Eliminate CRM spend for uncontactable records
Maintain ongoing data hygiene and compliance
Test our email verification
Enter an email to see how the email verification can work for your website
This demo uses our JavaScript widget that we’ve styled to look and feel as part of our website. You can implement it yourself as part of a form capture or as a standalone element. Read more in our documentation.
Try it out on your website using our 30-day trial with 1,000 free lookups.
No credit card required.
Verify in real-time directly in your forms
Enhance your email form fields to ensure every email address you collect is genuine and useable
Your CRM is only as good as the data that goes in. Catching issues early prevents downstream problems and unnecessary friction.
Add Addressfinder’s real-time email verification to any online form and easily customise settings to restrict undesirable email addresses. This enables you to:
Ensure new signups are contactable
Prevent invalid emails from entering your database
Reduce spam and fake accounts
Prevent downstream headaches and fixes
Verify in bulk
Clean and fix your email database with our easy-to-use bulk verification tool
Upload a CSV of your email address database and we’ll verify that each one is valid and correct, format it consistently and attach its associated metadata.
Real-time verification ensures emails are accurate at collection, but over time emails degrade and your records become inaccurate. Prevent this data decay with regular bulk verification.
Our customers also use bulk email verification to:
Clean and segment lists before a campaign
Cleanse before merging or moving CRMs
Remove invalid, catch-all and uncontactable records
Validate new email lists from events or third parties
Try it out with our trial - 1,000 free email verifications.
No credit card. No commitment.
Ways to use our service
Addressfinder’s email verification can be easily integrated into your workflow through our range of integration options to suit your business needs and technical requirements.
How it works
Every email address is validated using four layered checks to ensure it's correctly formatted, linked to a valid domain, registered on a mail server, and compliant with your configured business rules.
You can configure or customise the rules for your own use case.
Syntax checks
Verify if the email address is formatted correctly. An email address must have a username followed by the @ symbol and a domain with a valid suffix such as .com, .org or .net.
Domain checks
Verify if the domain has a valid MX record pointing to a mail server capable of sending and receiving emails.
Server checks
Verify if the email address is registered on the mail server by checking the SMTP connection. This makes sure that the address exists and is accepting incoming emails.
Rules checks
Verify if the email address matches your filter settings. For example, you can only allow non-disposable addresses, restrict catch-all and group emails, etc.
Customise what data to accept
As part of Addressfinder’s email verification, we provide additional information on each email’s attributes.
You can configure allow, warn, or block rules for the below attributes, giving you full control over data quality without compromising conversion.
Disposable – temporary or throwaway addresses
Role-based – shared inboxes such as support@ or info@
Public – emails from providers like Gmail or Yahoo
Unverified – emails that don’t pass our verification checks
Email verification FAQs
Start verifying data in minutes
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