A Secure Email Validation Tool With High Accuracy- Check365
Check email address validity and boost your sender reputation using the fast and best email validation tool. Invalid addresses, typos, and potential spam traps can hinder your campaigns and damage your sender reputation. Check365 is a specialized and secure email validity checker that offers 99.99% accuracy and email deliverability tools at the lowest prices.
Check365’s Core Features
We help you get in touch with your customers and find real emails. Our reliable real-time email validation checker can help you get more emails into the inbox and get people to open them.
Real-time Email Validation
Our free and open-source SDKs and developers API assure security and simple integration with our real-time email validator.
Advanced Email Sorting Features
Our free Email Sorting works on all kinds of email systems and can help your messages get to your inbox faster.
Bulk List Cleaning
You can upload your Microsoft 365, Google, Yahoo!, or AOL email list, and our powerful engine will sort the names into four groups: Valid, Invalid, Risky, and Unknown.
Easy API Integration
Our data checking process is easy to add to your system, so it works with other tools and is consistent with them
Advantages of Using Check365 For Email Validation
Improved Deliverability
By removing the wrong and spammy email addresses, your campaign will be delivered to the right customer and will increase the open rate
Maintaining Good Sender Reputation
As you are not sending to any non-existence email address, your sender reputation will be preserved and will reduce the chance of getting into spam box.
Cost Minimizing
Your investment will not be wasted as you are eliminating the invalid email addresses before sending emails which will increase your ROI.
Advanced Insights
Our dashboard will show you some advanced insights about your email campaign and how many emails are valid, invalid, and risky.
Meeting Compliance For Better Privacy
We ensure all data are handled safely with top-notch security to meet the compliance and data safety

Flexible Pricing Plans to Fit Your Needs
It doesn’t matter what size your business is, our tool will work well for you. Credits pricing are based on the number of email validations you need. and you can buy more credits as you go. the higher the number of credits you buy, the lower the cost per credit.
- Get 100 credits on sign up
- Pay as you go pricing model
- Email validation cost 1 credit
- Starting from $0.0025 per credit
Buy Credits
Allowed Email Validation
Cost per credit
Total Amount (USD)
Credits
20,000
Enterprise
For businesses that need a more robust solution, and validation at scale.
- Unlimited email validations
- Custom Data Integration Support
- Dedicated Account Manager
- Custom Pricing
Save Time and Effort with our secure email validity checker
Check365 works with all types of email systems. Check the validity of emails like Microsoft 365, Gmail, Yahoo!, AOL, etc. and can bring success to your email marketing campaign.
24/7
Customer Support
99%
Percent Accuracy
10M+
Emails Scanned Daily
Frequently Asked Questions
Have a question? We have the answer. Browse our frequently asked questions to get quick information on our email validation services.
What is email validation?
Email validation is the process of verifying that an email address is valid and deliverable. It is an essential step in maintaining a clean and up-to-date email list, reducing bounce rates, and protecting your sender reputation.
Why is email validation important?
Email validation is important because it ensures that your emails reach the right inbox. By verifying email addresses, you can reduce bounce rates, improve deliverability, and protect your sender reputation.
How does email validation work?
Email validation works by checking the syntax, domain, and mailbox of an email address to ensure it is valid and deliverable. It uses a combination of algorithms and databases to verify the accuracy of an email address.
What are the benefits of email validation?
The benefits of email validation include reduced bounce rates, improved deliverability, and enhanced sender reputation. By verifying email addresses, you can ensure that your emails reach the right inbox and are not marked as spam.
Is the API easy to integrate?
Yes, our API is easy to integrate into your software. We provide comprehensive documentation and support to help you get started quickly and easily.