Klaviyo + MailOdds
Validate subscriber emails to reduce Klaviyo bounces and protect sender reputation. Auto-suppress invalid addresses and clean lists before campaigns.
Prerequisites
- MailOdds account with API key
- Klaviyo account with private API key
- Zapier or Make account
How to Connect
Klaviyo Use Cases
Subscriber Validation
Validate emails when new profiles are added. Auto-suppress invalid addresses before they receive campaigns.
Pre-Campaign List Clean
Bulk validate a list before a major send. Remove bounces and protect your sender reputation.
Segment by Email Quality
Create Klaviyo segments based on validation status. Send to verified-only lists for critical campaigns.
Bounce Rate Reduction
Keep Klaviyo bounce rates under 0.5% by removing invalid emails proactively instead of after they bounce.
Step-by-Step Setup
Get Your API Keys
MailOdds API key from dashboard. Klaviyo private API key from Settings > API Keys.
Create Zap: New Klaviyo Subscriber
Trigger on "New Subscriber" in Klaviyo. Map the email field to the validation Code step.
Add Validation Code Step
Paste the MailOdds validation code. Returns status, action, and quality score.
Add Filter: Only Invalid Emails
Filter step: continue only if is_valid = false. This routes invalid emails to suppression.
Suppress Invalid Profiles
Use Klaviyo "Suppress Profile" action. Invalid emails will not receive future campaigns.
Zapier: Validate Klaviyo Subscriber
JAVASCRIPT// Zapier Code Step - Validate Klaviyo Profile Email
const response = await fetch('https://api.mailodds.com/v1/validate', {
method: 'POST',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
email: inputData.email // Mapped from Klaviyo profile email
})
});
const result = await response.json();
return {
email: result.result.email,
status: result.result.status,
action: result.result.action,
is_valid: result.result.action === 'accept',
is_risky: result.result.action === 'accept_with_caution'
}; Make: Klaviyo List Validation
JAVASCRIPT// Make Scenario - Klaviyo List Validation
// 1. Klaviyo: Watch New Profiles (or use scheduled trigger)
// 2. HTTP Module: POST to https://api.mailodds.com/v1/validate
// Headers: Authorization: Bearer YOUR_API_KEY
// Body: { "email": "{{1.email}}" }
// 3. Router: Branch by action
// - "reject" -> Klaviyo: Suppress Profile
// - "accept_with_caution" -> Klaviyo: Add to "Risky" segment
// - "accept" -> Continue (no action needed)
// 4. Klaviyo: Update Profile Properties
// "$email_validation" = {{2.result.status}} Zapier: Auto-Suppress Invalid Emails
JAVASCRIPT// Zapier: Suppress Invalid Emails in Klaviyo
// After validation, suppress emails that fail verification:
//
// Step 1: Code by Zapier (validation above)
// Step 2: Filter - Only continue if is_valid = false
// Step 3: Klaviyo - Suppress Profile
// Email: {{trigger.email}}
//
// This prevents invalid emails from receiving future campaigns,
// protecting your sender reputation and reducing bounce rates. Frequently Asked Questions
Troubleshooting
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