Email verification: what it is, how it works and where to find it
Email marketers are always up against it when it comes to their reputation with ISPs and ESPs. Incorrect spelling, honeypots and formatting errors in emails are standard challenges that senders face when mass marketing. If you stumble across them, your customer experience, revenue opportunities and sales efficiency are all put at risk. Email verification can help you mitigate this risk.
What is email verification?
Email verification is a service that analyses a bulk list of email addresses for validity, identifying spam traps and address errors before your mail is sent out. It keeps your list clean and improves deliverability. How does it work? Email verification uses algorithms and validation techniques to determine the legitimacy of an address. A syntax check removes addresses with formatting errors, while a domain check verifies DNS entries. Spam trap detection will look out for bogus email addresses and honeypots, while a DNSBL check scans for addresses and IPs that are part of spam networks. Verification will also remove role-based addresses (such as sales@ and info@) that you could be penalised for, as well as ‘disposable’ addresses that are usually used for login or signup forms. Most validation processes will also do a final SMTP check, in which your list of email addresses is pinged to check they exist without actually receiving any mail from you.
There are two main services that email verification providers offer:
- A Batch or List service, whereby a company uploads a file (such as CSV) containing multiple email addresses, which is then run through a verification process.
- Real-Time API, which is a piece of code integrated into a company’s website or CRM that can validate email addresses one by one in real time.
Why use it?
A high delivery rate is essential for any business that sends mass emails. All sorts of communications – from marketing campaigns to customer engagement and order confirmations – rely on the successful delivery of emails. That’s where email verification comes in. Picking out discrepancies in your email list, it prevents bounce back. This stops your ‘from’ domain from being blacklisted and protects your sender's reputation.
Top 10 email verification providers
Zero Bounce offers an email verification process with extremely low bounce rates and extra features including spam trap detection and email data append. It offers support for customers via phone, email and live chat.
The most comprehensive email verification service with 99%+ verification accuracy. Email list verification, bulk email verifier, email verifier API & automated email verification in one place. During email verification, MillionVerifier completes a deep-level email verification. We check if the email syntax is correct and create an SMTP connection with the recipient email server to find out if the email address exists. MillionVerifier’s verification accuracy is higher than 99%; hence we are rated excellent on Trustpilot.
Email Checker is a leader in the marketplace, offering an incredibly accurate bulk list cleaning service, real-time verification and ESP integration with syntax, format, domain and mailbox checking, at every price point. It offers a user-friendly dashboard, a professional and experienced 24/7 support team and a 97% deliverability rate.
QuickEmailVerification validates email addresses to benefit deliverability and open rates, as well as prevent bounce and improve ROI. It has a easy-to-use interface, 24/7 support and counts Fortune 500 companies among its clients.
BulkEmailVerifier is a SaaS service that offers a quick 60-second signup, with nothing to install or download. It provides real-time and batch verification (in CVS and TXT formats), with a complete validation run, including domain, syntax and mailbox checkers.
XVerify promises to eliminate hard bounces, reduce complaints, protect against fraud and increase deliverability with its intelligent email list cleaning service. It offers an integrated API for web forms and apps that is Privacy Shield certified.
NeverBounce offers free testing for new customers and flexible pricing options. It can clean 10,000 emails in just three minutes and offers support via email, phone and live chat. The service can be integrated with a variety of platforms, including iContact and MailChimp.
MailGet offers a one-click list cleaning service at a very competitive price. It verifies email addresses against a domain validator and DEA checker, removing invalid, suspended, spam and bounce emails from your contacts.
MailboxValidator is an effective cleaning service that’s custom built to eliminate bad and inactive email addresses from your marketing list. It offers a 96% deliverability rate and a free trial plan for 100 addresses.
HuBuCo boasts incredible accuracy and speed from its list cleaning service, with both batch and real-time API options. It offers hard bounce protection, functional reports and discounts on bulk lists.