Over 150,000 companies are building great apps and email programs with Mailgun
Best-in-class email verification
Non-validated email lists are a missed opportunity
Over 20% of your email database will go bad this year. Sending to invalid email addresses results in unnecessary bounces and lower engagement which damages your sender reputation.
We have the tools you need to reach more subscribers and maximize the impact of your email program. Use Mailgun email validation to remove invalid and high-risk email addresses from your list before you send.
Mailgun Validate: Email validation service
When low quality lists are draining your resources, Mailgun Validate can help. Get more from your email program with Mailgun Validate:
Remove invalid and high-risk addresses from your lists instantaneously
Minimize hard bounces
Increase engagement
Improve your sender reputation
Maximize inbox placement
Stay out of the spam folder
Optimize email performance
Unlock the true potential of your email program
Hit your email program KPIs, all while saving time and money with a clean email list. Customers who verify email addresses with Mailgun Optimize before they send lowered their bounce rates by 21%, dramatically improving their delivery rates and maximizing the ROI of their email program.
With less bounces damaging your sender reputation, you can achieve better deliverability, higher engagement, and most importantly, more conversions.
Streamline your email flow
Save time for yourself and your customers
Mailgun Optimize is built on the tried-and-true Mailgun infrastructure that delivers over 450B emails every year. We use existing email data to enrich our verification service, giving you a level of speed, performance, and accuracy that won't be found with the competition.
When verifying large contact lists, get your results in minutes instead of hours or days. Need to clean a list with millions of addresses? Simply upload your CSV file, grab a cup of coffee, and come back to a clean email list.
Verify your way
Our email verification tool is designed to be flexible so you can mold it around the needs of your business. You can verify individually, in bulk, or directly at the point of collection via API. Not sure if your list needs cleaning? Get an aggregate assessment in seconds to find out before you verify.
1. Real-time email validation
Embed our API in your signup page or form
Verify contacts immediately at the point of collection
Provide smart suggestions for common typos
Avoid disposable addresses and protect against bot attacks
Ensure accuracy with checks done against both our own cached email send data and the mailbox provider themselves
2. Email list validation
Verify your existing email address lists
Upload a CSV file and verify by list
Immediately identify and remove undeliverable contacts
Catch email addresses that have turned into honey pots
Make smart decisions on who you should and shouldn’t send to using our risk score
Get results on millions of emails in a fraction of the time other verification providers can
3. Email validation preview
Run an aggregate verification preview
Not sure if your list needs cleaning?
Get an instant, risk-free assessment of your list that won’t cost a thing
See your aggregate list health and risk-level before you choose to verify
Run tests regularly to monitor list health or vet incoming/existing customers by their list health and collection practice
Get comprehensive results
Leave nothing to question
All our applications are built in-house, from the ground up, backed by years of email expertise. Mailgun email validation features go beyond simple grammar rules – we check email addresses against our own cached data and directly with mailbox providers to verify every address on your list. Our verifications offer:
A unique risk score for each address
Mailbox/MX verification
Predictive contact engagement profiles
Role-based address verification
Disposable address verification
Catch-all address verification
Suggestions for suspected typos
RFC grammar rule check
Protect your platform
Stop abuse without sacrificing performance
A bot attack can turn into full-blown DDoS attacks if detected too late, causing massive disruption to your email program and costing you time and money. Use Mailgun Optimize Verification to identify suspicious domains that bad actors could be using to disrupt your business.
Keep email lists current with validation and email validation
Since a valid email address is essential for bulk email marketing, regular bulk email list verification is essential for sending emails. Usually, the easiest way to build a list and verify emails at the same time is through a web form. When an email validation tool is not in place, users may enter invalid email addresses, spam traps, or disposable mailboxes. If you send a bulk email without an email verification process your messages end up bouncing, and your sender score and email deliverability both end up suffering for it.
There is nothing more frustrating than sending out bulk emails for your email marketing campaigns only to have those messages bounce back, be rejected by the mail server, or get marked as undeliverable due to bad email addresses. That’s why an integrated email verification process is so important for email campaigns. Using an email verification tool allows for real-time email verification through your web application.
While you can verify email addresses manually, this gets pretty tedious for lists with hundreds or thousands of b2b email addresses. In these cases, using a bulk email verifier tool is a necessity for clean lists. An email validation tool like our bulk validations provides a bulk email verification service quickly and all in one go, allowing for a catch-all solution for your email lists. Simply upload your CSV file and we take care of the rest.
Improve your sender reputation and results with an email validator
Are your emails underperforming? Is your marketing team concerned with their email marketing campaigns’ click-through and open rates?
Your deliverability might be the issue.
Sending emails to bad addresses wastes your time and hurts your sender reputation – it may even land you on a blocklist, which sends your email campaigns straight to spam.
Nobody wants that.
When you ensure your message reaches valid emails with an email address validator, you’ll see a dramatic rise in open rates, click-throughs, and delivered emails. Mailgun’s email validation tool is straightforward to use and easy to integrate, so you can check and collect recipient email addresses. Our tool allows you to send marketing, ecommerce, and transactional messages with accuracy and integrity.
Email validation with GDPR compliance
At Mailgun, we prioritize privacy and the security of your recipients' personal data. Our email validation process is designed with General Data Protection Regulation (GDPR) compliance in mind, ensuring that we handle data responsibly and transparently. By using Mailgun, businesses operating in the EU can confidently maintain compliance while effectively managing their email communications. Trust us to help you navigate the complexities of data protection regulations.
Never get a hard bounce again with the fastest bulk email verification tool in the industry
Don’t wait to receive that hard bounce to find out you’ve got a bad email address on your hands.
Our email verification tool uses our cache of billions of email addresses as its primary source so you can get lightning-fast verification. It's so fast that you can call our service on your signup, checkout, or form submission page to ensure you're capturing accurate results before users even enter your system.
Need a bulk email verifier for millions of emails? You can expect results from us in minutes, not days. Our powerful algorithm identifies typos, misspellings, and other errors that put your sending reputation at risk — so you can breathe easier when you press send.
Trust Mailgun to help verify your email lists, send bulk emails, and monitor your domain reputation.
"Mailgun email validations API is simple and incredibly accurate. It allows our customers to make changes to their email address quickly, which only adds to the product’s value-add."
Joe Dan Galyean
Vice President of Software Development at Cinemark
Why you should verify your email list before sending bulk email
Bad email addresses = bad news.
That’s because bad email addresses usually result in a hard bounce.
That email you’ve spent hours crafting and optimizing? It never reached your customers and shows inbox providers that you’re not following best practices. This bounce, in turn, hurts your sender’s reputation and you’ll start to see negative impact on your overall email deliverability as a result.
You spend thousands of dollars and hours of work acquiring email addresses. But a bad email address? That’s not just a lost customer – it’s all that time and energy wasted. Don't let typos clog up your email list with invalid email addresses. Use email checking tools to ensure you're capturing every customer along the way.
Mailgun’s email validation tool can lower your bounce rate for your email campaigns by up to 20%. Supercharge your email marketing campaigns with Mailgun's powerful email verification tool.
How often should you check your email list?
Well, pretty often.
That’s because when you collect a person’s email address, you’re only collecting one snapshot in time. They may change email addresses, switch domain names, leave their inbox service provider, and more. In other words, about 25% of your email database goes bad every year. We recommend running a full email verification on your email list annually.
If you need help with your overall email deliverability strategy – Mailgun can help. We’re an industry-leading email service provider (ESP) that has partnered with leading companies like Lyft, Shopify, and Etsy to help improve their email performance. See what we can do for your small business!
How does email address verification work?
Using Mailgun's Email validations service, check a single email address at a time, upload a CSV of emails to validate in bulk, or use our super-fast email validation API. Our email checker goes beyond real-time analysis and looks at deliverability history across the Mailgun ecosystem. Our verification service catches syntax errors or suspicious domain names in seconds.
We combine the power of our sending data from analyzing billions of emails every day with SMTP lookups from email providers like Gmail, AOL, and Yahoo Mail to determine if an address is mailable or not. Our proprietary verification process does the following checks:
Email server and MX record verification
Roll-based address verification
Disposable email address verification
RFC grammar rule check
Suggestions on suspected typos
We’re constantly adding new rules and updates to ensure that you’re always checking email addresses against the most up-to-date information. Get email verification and more with our Foundation plan.
Sign up and start checking your emails today.
4 steps to a comprehensive email validation (and better deliverability)
Email verification tools like Mailgun work on several levels to ensure that every email address that comes into your email service provider works. Here’s how:
Grammar and syntax checks for local parts rules: Our email validator algorithm automatically conducts grammar checks based on rules for major mailboxes. For example, a Gmail address such as “cats+dogs@gmail.com” would be flagged as an invalid email because the “+” does not meet Google’s local parts rules.
Spotting common typos: Mailgun’s address validation tool also searches for common domain name misspellings, and offers on-the-spot suggestions. Say goodbye to errors like “gmal.com,” “yaho.com” and more.
Flagging high-risk email addresses: Our email validator reduces spam complaints by refusing specific types of email addresses, such as role-based email addresses (like sales@example.com) or disposable e-mail addresses, which are usually temporary emails that may include a string of numbers or a signifier in the local parts such as “throwaway” or “junk mail.”
Mailbox provider email verification: Mailgun’s email validation tool programmatically checks the email address with the inbox provider and mail server as an additional step in the email validation process. This means you can be confident that the email address on your list actually exists at the recipient domain.
FAQs
What’s email verification?
Email verification is a process that checks if an email address is deliverable. In other words, this tool determines if it’s possible to deliver mail to that email address before you send an email.
Why is email verification important?
Email verification is important because it:
Boosts your delivery rate by removing invalid email addresses.
Maintains your mailing list hygiene by keeping your email list up-to-date.
Improves your email marketing metrics like click-through rate (CTR), open rate, and click-to-open ratio (CTOR).
Protects your sender reputation.
How does email verification impact my email deliverability?
Email deliverability is highly impacted by bounced emails. Decrease email bounces by performing email verifications ahead of time.
Your IP address and domain reputation takes a hit when your email service provider (ESP) can’t place your email into a subscriber’s inbox. This impacts future deliverability because email clients rely on IP and sender reputations to determine whether or not to deliver your messages. If you have a bad sender or IP reputation, email clients may decide to place emails sent from your domain name in your subscriber’s spam folder. Or, they may not deliver them at all.
When should I validate my email list?
If you’ve bought a mailing list (which we highly recommend that you don’t) or if you’ve inherited a mailing list you’re unfamiliar with, it’s a great idea to use an email verifier.
In addition, if your list has grown or it’s been some time since you last verified your email addresses, we recommend that you give your mailing list a health check today.
What does Mailgun Optimize’s email validation tool check for?
Mailgun Optimize Email validation tools checks for the following:
The email address syntax is correct.
The domain is set up to receive email.
The email address exists.
The address doesn’t have any cached bounce events from the Mailgun network.
The email address isn’t a high-risk address.
The email address isn’t a role-based email address such as info@mailgun.com or admin@mailgun.com.
What’s a valid email address?
A valid email address belongs to a real person, contains allowed characters, and is free from mistakes like typos. Invalid email addresses could include misspellings, wrong domains, or be bot addresses. Check your email addresses today to minimize email bounces.
Can you perform real-time email verification?
Yes, our email validations API performs email verifications in real-time.
Can I check a whole list of email addresses at the same time?
Yes, you can perform bulk email verifications with our email validations API. Alternatively, you can use the Mailing List feature on our platform to verify emails in your mailing list.
Can email verification remove duplicates?
Yes, our email verification tools help you identify and remove duplicate emails.
How can I verify an email address without sending an email?
Here are three ways to validate email addresses without sending emails:
Ping the originating email server to access MX records, which tell you beyond a doubt whether or not this email address is valid and in use
Use Domain Name Service (DNS) lookup to verify a domain’s authenticity
Use an email validator, like Mailgun’s email validation tool
What’s an email validator?
An email validator, or an email verification tool, is a software tool that checks the validity of an email address based on whether or not it’s deliverable. In other words, can the email service provider place an email in your subscriber’s inbox? Validators check if the email syntax is correct, if the address can receive emails, and if it exists.
What’s a valid email?
A valid email is an email address able to receive messages. For instance, it’s composed with the correct syntax, it’s not a role-based email, its domain can receive messages, and it isn’t a high-risk, spammy email address.
How can I verify my email?
Our email validations tool is part of our new suite of deliverability tools, Mailgun Optimize. Verify at the volume you need with our flexible pricing.
How can I perform email validations?
You can validate emails at several points in your process. For example, you can implement regular expressions (RegEx) in your sign-up forms and pop-up web forms to collect email addresses. However, this doesn’t catch everything. Performing regular email validations to maintain email list hygiene is essential. An email verification tool helps make list verification part of your email process.
What are some examples of email validation?
Here are some of the most common examples where email validation is useful:
Syntax Checking: Mailgun’s Validate tool ensures that email addresses are correctly formatted, checking for essential components like "@" and a valid domain.
Domain Verification: With Mailgun, you can verify if a domain exists and is configured to receive emails, helping you maintain a reliable email list.
Disposable Email Detection: Mailgun identifies temporary email addresses from known disposable email providers, so you can avoid sending emails to transient accounts.
Role-Based Address Detection: Mailgun can recognize role-based addresses (like info@ or support@) that may not represent individual users, helping you target your audience more effectively.
SMTP Check: Mailgun performs SMTP checks to verify that the email server can accept emails for specific addresses, ensuring better deliverability for your campaigns.
What is an email validation tool?
An email validation tool is designed to check email addresses for accuracy and deliverability. By using email validation tools, businesses can ensure their email lists are clean and compliant, reducing bounce rates and enhancing the effectiveness of their email campaigns. Mailgun’s Validations tool performs a series of checks, including syntax validation and domain verification, to provide a comprehensive assessment of your email list.
What is the difference between email verification and validation?
Email validation checks the format of an email address to ensure it adheres to standard syntax rules. In contrast, email verification confirms that the email address exists and can receive messages by checking the server's response. This two-step process helps maintain a clean and effective email list.