Looking to re-engage customers who’ve gone dark on email and SMS?
LettrLabs makes it easy to trigger handwritten mail to any Klaviyo segment—all in just a few clicks.
Here’s a step-by-step guide to setting up your first Klaviyo automation in LettrLabs:
✅ Step 1: Log In to LettrLabs
- Start at your LettrLabs homepage.
- Navigate to the “Automation” tab in the left-side menu.
- If you haven’t already connected your Klaviyo account, the system will prompt you to do so.
🔗 Note: You’ll need to be logged into your Klaviyo account for the integration to complete.
✉️ Step 2: Create a New Automation
- Click “Create New Automation”
- Select “Klaviyo” as your integration source
- Name your automation (e.g., First-Time Buyer Winback, Re-Engagement Campaign, etc.)

🧩 Step 3: Choose a Template
- LettrLabs offers pre-built card templates for common campaign types, or you can create your own.
- Click to select a template that fits your campaign goal (e.g., First-Time Buyer)
- You’ll see a preview of the handwritten card style included in that template
👥 Step 4: Select Your Klaviyo Segment
Once your Klaviyo account is connected:
- All your existing Klaviyo segments will populate in a dropdown
- Choose the segment you want to mail to
(Popular example: subscribers who haven’t opened email/SMS in 30+ days)

📦 Step 5: Set Your Monthly Send Limit
- Define how many recipients you’d like to include each month (e.g., 5,000)
- This helps you manage your volume and spend based on your goals
💾 Step 6: Save and Activate
- Click “Save”
- Your automation is now live—LettrLabs will automatically mail your selected segment every month without lifting a finger
🎉 That’s It!
Your Klaviyo automation is now powering handwritten outreach, helping you reconnect with customers in a meaningful, tangible way.
💡 Want help designing your first campaign? Reach out to our team—we’re happy to mock up card designs using your brand assets.