MailOdds

Klaviyo + MailOdds

Validate subscriber emails to reduce Klaviyo bounces and protect sender reputation. Auto-suppress invalid addresses and clean lists before campaigns.

Setup time: 5-10 min
Difficulty: Beginner
1,000 free validations included

Prerequisites

  • MailOdds account with API key
  • Klaviyo account with private API key
  • Zapier or Make account

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

1

Get Your API Keys

MailOdds API key from dashboard. Klaviyo private API key from Settings > API Keys.

2

Create Zap: New Klaviyo Subscriber

Trigger on "New Subscriber" in Klaviyo. Map the email field to the validation Code step.

3

Add Validation Code Step

Paste the MailOdds validation code. Returns status, action, and quality score.

4

Add Filter: Only Invalid Emails

Filter step: continue only if is_valid = false. This routes invalid emails to suppression.

5

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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