Mailersend is a platform that enables you to send transactional emails and manage email templates through a unified API. By integrating with Relevance AI, you can enhance your email communications with intelligent automation and personalized interactions.


Mailersend simplifies the process of sending transactional emails and managing templates. With Relevance AI, you can leverage these capabilities to create dynamic, responsive email communications powered by AI Agents.
Intelligent Email Orchestration
The AI Agent seamlessly coordinates complex email workflows by leveraging MailerSend's robust API and template system.
Dynamic Content Personalization
Transform standard templates into highly personalized communications through real-time content adaptation and variable substitution.
Automated Response Intelligence
Monitor and react to email engagement patterns through webhook integration and real-time event tracking.
Relevance AI integrates with Mailersend to enhance your email workflows with intelligent automation and seamless communication.
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 Mailersend account
- A Relevance AI account with access to your datasets and projects
- Authorization (you'll connect securely using API keys—no sensitive info stored manually)
Security & Reliability
The Mailersend integration with Relevance AI utilizes secure OAuth authentication, ensuring that only authorized workflows can send transactional emails and manage templates through a unified API interface. Relevance AI handles API operations (like sending emails, managing templates, and making custom API calls) in the background—so you don’t have to worry about errors, formatting, or limits.
This integration simplifies email automation, allowing you to leverage template management and comprehensive API access for automated customer communications, notifications, and marketing campaigns.
Built-in validation and type conversion ensure your email workflows run smoothly, even when data formats vary. For instance, you can easily send basic emails or utilize templates with dynamic substitutions, all while monitoring delivery status and handling errors 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 0CodeKit + Relevance AI integration without writing code:
- Start with a clear setup: Ensure your 0CodeKit account is properly configured with the necessary OAuth credentials and permissions.
- Utilize example code: Leverage the provided code snippets for PDF compression and barcode reading to jumpstart your integration.
- Validate inputs: Always check your input parameters for correctness before making API calls to avoid unnecessary errors.
- Test with sample data: Run your automations using test PDFs and images to ensure everything works smoothly before going live.
- Monitor API usage: Keep an eye on your API calls to avoid hitting rate limits, and implement caching where appropriate.