Brevo Emails Going to Spam
Quick answer
Brevo emails land in spam mostly because the sending domain is not authenticated (DKIM, SPF, DMARC), the domain has no reputation yet, or the list is poor. Authenticate your own domain first, then warm it up.
Most likely fix: Authenticate your domain in Brevo
How to fix it
Try these in order — the most common fix is first.
1. Authenticate your domain in Brevo
- Go to Senders, Domains & Dedicated IPs > Domains
- Add your domain and complete Brevo code, DKIM and DMARC verification
- Add the TXT/CNAME records at your DNS host and wait for them to show verified
Did this fix it?2. Test with real headers
- Send a test to Gmail, open Show original
- Confirm SPF, DKIM and DMARC all say PASS
Did this fix it?3. Warm up gradually
- Start with your most engaged contacts
- Increase volume over several weeks rather than sending the full list at once
Did this fix it?4. Clean list and content
- Remove bounces and non-openers
- Keep a text-to-image balance and avoid spam trigger wording
- Make unsubscribe easy
Did this fix it?5. Understand 'delivered'
- Delivered in Brevo means the receiving server accepted the message, not that it hit the inbox
- Use seed tests or Postmaster tools to see placement
Did this fix it?
Symptoms
Emails marked delivered in Brevo but recipients find them in spam or promotions, or never see them.
Why it happens
- Domain not authenticated, so mail goes out on Brevo's shared domain
- Missing DMARC (Microsoft addresses may reject or spam unauthenticated mail)
- New domain with no sending reputation
- Shared IP pool reputation
- Low engagement and old lists
- Spammy content or image-only emails
This guide also covers
- brevo emails going to spam
- brevo spam folder
- brevo deliverability
- sendinblue emails going to spam
- brevo emails not received
Still not working?
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Other Brevo errors
- Brevo Account Suspended or Under Review
- Brevo Domain Authentication Failed (DKIM, DMARC)
- Brevo SMTP Relay 535 Authentication Failed
- Brevo Daily Sending Limit Reached (300 Emails)
- Brevo Contacts Import Failed
- Brevo Emails Not Delivered, Bounced or Deferred
- Brevo Account Not Approved for Sending
- How to Cancel Brevo Subscription