Bulk Email List Evaluator
Try our free bulk email checker
Upload a CSV or TXT file and verify a list of email addresses for free. Find out how ZeroBounce delivers better bulk email list verification with 99.6% accurate results.
Try our free bulk email checker
Upload a CSV or TXT file and verify a list of email addresses for free. Find out how ZeroBounce delivers better bulk email list verification with 99.6% accurate results.
Find out how ZeroBounce delivers better bulk email list verification with 99.6% accurate results. Upload a CSV, XLS, XLSX or TXT file and ZeroBounce will evaluate your list for free.
Want to check a single email address? Type it in – and get the result in seconds.
Upload an email list
You can verify emails in bulk by uploading your email list as a CSV file. If you’re unfamiliar, a CSV (Comma Separated Values) contains a list of data separated by commas.
As such, you want your email list to appear like the following:
Though your list of contacts likely contains additional data, our bulk email verifier focuses on the email addresses.
Email service providers (ESP) will allow users to download their lists as CSV files. You can also compile your email data within an Excel file and export it as a CSV. If you’re uncertain, check your platform’s help documentation to learn how to retrieve your list.
Then, simply upload your email list using the button provided. Once the upload completes, click verify to retrieve your results from our bulk email validation tool.
Enter a single email address
Alternatively, you can enter a single email for one-off testing. Enter the email address in the appropriate format and click verify to see your results.
Invalid
An invalid email address is any address that does not exist or is no longer in use by a real person. You can receive an invalid result from the bulk email checker if:
Invalid results lead to bounces. As your bounce rate increases, your email sender reputation suffers. Bounce rates higher than 2% can automatically alert ISPs (Internet Service Providers) and cause them to reject your emails or deliver them to spam.
It’s essential to identify the invalid addresses and make updates if possible. Purge any outstanding invalid results from your email list.
Spam Trap
These are toxic for any email list.
A spam trap is an email set up by a public or private spam prevention service to catch email service abusers. If you scrape websites for lead data or purchase your email lists, you might pick up a spam trap.
Delivering messages to a spam trap has worse consequences than a bounce. Once the anti-spam service identifies you, they can blacklist your address and all other email addresses on your domain.
Once your domain is on a blacklist, ESPs can reject your emails entirely. Stay protected using our bulk email checker for free to stay on top of potential spam traps.
Catch-all
Catch-all email addresses are tricky because it can be challenging to determine whether a specific address actually exists and is managed by a real person.
Catch-all domains are configured to accept messages sent to any address on the domain, even addresses that may not exist. Because of this setup, catch-all emails have traditionally been difficult to verify with certainty.
ZeroBounce can now determine whether many catch-all email addresses are valid or invalid during the standard validation process, including many addresses hosted on Microsoft 365, Google Workspace, and major secure email gateways. This gives you clearer results right away, while still identifying the domain as catch-all.
Abuse
Abuse emails indicate addresses belonging to persons that abuse email reporting functions.
Rather than unsubscribing from your list, they freely report spam even if the sender adheres to their ESP’s acceptable sending practices.
While these are valid email addresses, abuse emails serve little more than to harm your email reputation. Our bulk email verifier helps you purge these from your lists.
Do Not Mail
Do Not Mail addresses may be valid, but you should avoid emailing them.
These addresses can belong to companies, roles, or individuals. You can further define a Do Not Mail address by one of six sub-categories:
The bulk email list evaluator will help you determine if you have any Do Not Mail addresses on your list so that you can take the next steps in eliminating them.
Validate
Spam traps, abuse emails, catch-alls, do not mail, and invalid addresses are all signs of an unhealthy email list. But which addresses are the culprits?
ZeroBounce’s bulk email list evaluator provides 99.6% accurate email list verification. We highlight every address with over 30 unique status and sub-status codes.
Bring your bounce rates down and start delivering more emails.
An email list evaluator, or bulk email checker, is a tool that shows the health of your email list based on a sampling of your contacts. The email list evaluator is free, allowing you to learn firsthand about your email list hygiene without committing to an email list cleaning service. If your email list evaluator results show a high percentage of invalid or high-risk emails, consider uploading your entire list to a proper email validation service immediately.
An email list evaluator gives you free, immediate, and accurate insight into your email list health. Many email marketers mistakenly believe that their email list is clean and healthy, only to struggle with high bounces and poor engagement. By periodically uploading your list to the email list evaluator, you can determine if it’s time to upload it to an email verification service before you send your next campaign. Doing so will drastically reduce bounce rates and ensure you reach your customers for better email marketing ROI.
The email list evaluator only validates a simple of your email list. It does this to get a quick, accurate snapshot of your email list quality before committing to an email validation service. If your email list evaluator results show a high percentage of invalid or risky emails, you should upload your entire list to an email validator to fully clean your complete email list.
Yes. The email list evaluator provides a quick snapshot of your email list health at no cost. It’s an excellent way to determine if your email contacts are up-to-date without prematurely using an email verification service. It’s recommended to take advantage of the email list evaluator regularly to know the best time to clean your email marketing list throughout the year.
An email list evaluator is a reliable tool for email marketers and companies submitting mass email communications. The evaluator provides a reliable, cost-effective way to learn more about your email list health before you upload your database for email validation.
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