Mails.so provides a real-time email verification API that eliminates invalid email addresses and blocks spam signups, ensuring high deliverability and improved engagement rates for businesses. By maintaining clean email lists, the service helps prevent fraud and reduces costs associated with undeliverable messages.
Funding
Funding not disclosed
Founders
Product
Problem
Businesses often struggle with low email deliverability and engagement rates due to invalid or fake email addresses in their contact lists. This results in wasted resources, damaged sender reputation, and potential fraud.
Solution
Mails.so offers a real-time email verification API that helps businesses maintain clean and high-quality email lists. The service identifies and removes invalid, misspelled, temporary, and spam email addresses, preventing them from entering the system during signup or list uploads. By validating email deliverability, format, and reputation, Mails.so ensures that businesses only engage with real users, improving email deliverability, engagement rates, and ROI. The platform offers no-code integrations with popular tools and a REST API for custom implementations.
Target Audience
Mails.so targets businesses of all sizes that rely on email marketing, including e-commerce stores, SaaS companies, and newsletter publishers, as well as any organization seeking to prevent fraud and maintain a high-quality user database.
Features
- Real-time email verification API for immediate validation during signup or data entry
- Batch email list validation to clean existing contact lists
- Syntax check to identify misspelled or malformed email addresses
- Domain and MX record verification to ensure the domain is valid and accepts emails
- Disposable email address (DEA) detection to prevent temporary or throwaway email usage
- Spam trap and bot detection to filter out malicious or automated signups
- Integration with Zapier and Make for no-code automation workflows
- REST API with comprehensive documentation for custom integrations