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Brevo (formerly Sendinblue)

API300 emails/day forever

European provider with excellent GDPR compliance and generous free tier.

Best For
European businesses, GDPR compliance needs, small-medium sites
Pricing
Free: 300/day, Starter from $25/month for 20K/month
Integration Type
API

Overview

Brevo (formerly Sendinblue) is a French email service provider known for its strong GDPR compliance, generous free tier, and all-in-one marketing platform. The 300 emails/day free plan is perfect for small to medium WordPress sites.

With Authority Mailer SMTP, connecting Brevo takes just minutes using API key authentication.

Brevo (formerly Sendinblue) Features

300 emails/day free forever
GDPR compliant with EU data storage
Marketing automation included
SMS marketing capability
Chat widget integration
Webhook support for events
Transactional and marketing in one
Real-time analytics
A/B testing
Dynamic content

Requirements

Before you start, make sure you have:

  • 1Brevo account (free tier available)
  • 2API key from Brevo dashboard
  • 3Verified sender email

Step-by-Step Setup Guide

1

Create a Brevo Account

1. Go to brevo.com and click "Sign up free"

2. Enter your email and create a password

3. Verify your email address

4. Complete the onboarding questionnaire

2

Add and Verify Your Sender

1. Go to Settings → Senders & IPs → Senders

2. Click "Add a sender"

3. Enter your sender name and email

4. Check your inbox and confirm the verification


Optional: Set up domain authentication for better deliverability.

3

Get Your API Key

1. Go to Settings → API Keys (under SMTP & API)

2. Click "Generate a new API key"

3. Name it "Authority Mailer SMTP"

4. Copy the API key (save it securely)

4

Configure Authority Mailer SMTP

1. In WordPress, go to Authority Mailer SMTP → Settings

2. Select "Brevo" from the provider dropdown

3. Paste your API key

4. Set your "From Email" (must match verified sender)

5. Set your "From Name"

6. Save and send a test email

💡 Pro Tips

  • Use domain authentication for best deliverability
  • Track opens and clicks with Brevo's built-in analytics
  • Combine transactional and marketing emails in one platform
  • Use the free chat widget for customer support
  • Set up webhooks for delivery notifications

🔧 Troubleshooting

❓ API returns invalid key error

✅ Generate a new API key from Brevo. Make sure you're using an API key, not an SMTP password.

❓ Sender not authorized

✅ The From email must be verified in Brevo. Add and verify the sender address.

❓ Hitting daily limit

✅ Free tier is 300/day. Upgrade to paid or optimize your email frequency.

❓ Emails going to spam

✅ Set up domain authentication in Brevo → Settings → Senders & IPs → Domains.

Ready to Set Up Brevo (formerly Sendinblue)?

Get Authority Mailer SMTP and start sending reliable emails in minutes.

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