Mailcheck provides robust email validation tools that allow you to verify single emails or process bulk lists efficiently. With Relevance AI, you can elevate this functionality by incorporating AI-driven insights and automation into your email validation workflows.


Mailcheck ensures your email data is accurate and reliable, while Relevance AI enhances this with intelligent AI Agents that automate and optimize your email validation processes.
Real-Time Email Intelligence
Instantly validate and assess email quality during live conversations, ensuring every interaction is based on accurate contact data
Proactive Risk Prevention
Automatically identify and flag potentially problematic email addresses before they impact deliverability or compliance
Deliverability Optimization
Enhance email campaign success by maintaining pristine contact lists through continuous validation
Relevance AI seamlessly integrates Mailcheck's email validation capabilities into your data workflows.
What you’ll need
You don't need to be a developer to set up this integration. Follow this simple guide to get started:
- A Mailcheck account
- A Relevance AI account with access to your projects and datasets
- Authorization (you'll connect securely using API keys—no sensitive info stored manually)
Security & Reliability
The Mailcheck integration with Relevance AI utilizes secure OAuth authentication, ensuring that only authorized workflows can access your email validation capabilities. Relevance AI manages API operations (such as validating single emails or processing bulk email lists) in the background, allowing you to focus on your data workflows without worrying about errors, formatting, or limits.
This integration provides automated email verification, real-time validation results, and seamless workflow integration, making it easier to maintain the integrity of your email data.
With built-in support for batch processing, you can efficiently validate large lists of emails while monitoring operation statuses and handling partial failures effectively.
No training on your data
Your data remains private and is never utilized for model training purposes.
Security first
We never store anything we don’t need to. The inputs or outputs of your tools are never stored.

To get the most out of the Mailcheck + Relevance AI integration without writing code:
- Start with a valid email list: Ensure your email list is formatted correctly to avoid validation errors.
- Utilize batch processing: For large email lists, use batch operations to validate multiple emails at once, improving efficiency.
- Monitor operation status: Keep track of batch operation statuses to handle any potential issues promptly.
- Implement error handling: Always include error handling in your code to manage authentication errors and invalid email formats gracefully.
- Respect API rate limits: Be mindful of the rate limits for single and batch operations to avoid throttling and ensure smooth processing.