Free Email Validation
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
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