EchtPost Postcards is a digital postcard service that allows businesses to create and send physical postcards directly from their digital platforms.
Enhance your direct mail marketing with AI Agents that can automate personalization, targeting, and campaign optimization.



EchtPost Postcards enables personalized physical mail marketing at scale. Relevance AI transforms this into intelligent campaigns with AI Agents that can analyze customer data, segment audiences, and trigger targeted postcard sends automatically.
Intelligent Personalization
The agent crafts tailored postcards based on customer data and preferences.
Automated Workflow Orchestration
The agent streamlines the entire postcard marketing process, reducing manual tasks.
Real-Time Performance Insights
The agent provides instant analytics to optimize campaign effectiveness.
Relevance AI gives you access to EchtPost Postcards' direct mail capabilities within your automated 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 Relevance AI account
- An Airtable account with access to the base and table you'd like to use
- Authorization (you'll connect securely using OAuth—no sensitive info stored manually)
Security & Reliability
The integration uses secure OAuth authentication, ensuring only authorized workflows access your EchtPost Postcards data. Relevance AI handles API operations for postcard creation and delivery in the background—so you don't have to worry about formatting, limits, or delivery tracking.
Built-in validation ensures your postcards are properly formatted with correct addresses and images before sending.
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.

Best Practices for Non-Technical Users
To get the most out of the EchtPost Postcards + Relevance AI integration without writing code:
- Prepare your postcard content: Ensure images meet size requirements and text follows character limits.
- Verify addresses: Double-check recipient address formatting to prevent delivery issues.
- Use authentication properly: Keep OAuth credentials secure and regularly verify account access.
- Monitor API usage: Track your request limits and implement proper error handling.
- Test small batches: Start with single postcard sends before scaling to bulk mailings.