Email Validation for MailerLite

Why Validate Emails for MailerLite?

MailerLite charges based on subscriber count and requires a clean sending history for approval. Invalid emails can get your account rejected during their review process and hurt your deliverability scores.

Benefits

• ✓ Pass MailerLite's account approval with a clean list
• ✓ Keep costs low on their subscriber-based pricing
• ✓ Improve deliverability and open rates
• ✓ Build a reputation as a trusted sender

How to Validate MailerLite Emails

1. Step 1: Export subscribers from MailerLite's Subscribers section as CSV
2. Step 2: Validate the exported list using a bulk email verification tool
3. Step 3: Delete or unsubscribe invalid contacts from your MailerLite account
4. Step 4: Enable double opt-in for all new subscriber forms

API Integration

Integrate email validation directly into your MailerLite workflow:

// MailerLite API - Remove invalid subscribers
const axios = require("axios");

const API_KEY = process.env.MAILERLITE_API_KEY;
const BASE_URL = "https://connect.mailerlite.com/api";

const headers = {
  Authorization: `Bearer ${API_KEY}`,
  "Content-Type": "application/json",
};

// Get subscribers
const { data } = await axios.get(`${BASE_URL}/subscribers`, { headers });

// Unsubscribe invalid emails
for (const subscriber of data.data) {
  if (invalidEmails.includes(subscriber.email)) {
    await axios.put(
      `${BASE_URL}/subscribers/${subscriber.id}`,
      { status: "unsubscribed" },
      { headers }
    );
  }
}