Emails blocked by orange: How to avoid the spam folder

Aug 4, 2025

You send emails, but they never reach the Orange inbox? You're not alone. Orange's anti-spam filter is known for being strict and may block messages without warning. For publishers, journalists, or communication managers, every blocked email is a lost opportunity. In this article, we take a close look at the criteria Orange uses to identify emails considered as spam, common mistakes to avoid, and practical solutions to improve your email deliverability with Orange and keep your campaigns effective.

Table of Contents

Why Orange Blocks Some Emails

The Orange inbox and its filters are powered by a proprietary algorithm that automatically detects suspicious messages. The reasons? Unoptimized content, poor domain reputation, or missing technical configurations like SPF at Orange or DKIM. Result: your emails land in spam or get blocked by Orange with no clear feedback.

So, why does Orange block your emails? Here are the main reasons:

  • Content perceived as too promotional or aggressive
  • Missing or incorrect SPF configuration at Orange, DKIM, or DMARC
  • Domain or IP listed on an Orange email blacklist
  • High complaint or bounce rates
  • Violation of Orange's anti-spam rules

Top Emailing Mistakes to Avoid

Technical oversights or bad practices can easily derail your campaigns. Here are the most common emailing mistakes with Orange you should avoid:

  • Sending from an unauthenticated address
  • Using a shared IP with poor reputation
  • Ignoring Orange's spam score during testing
  • Forgetting clear and visible unsubscribe links
  • Sending too frequently without segmentation

Segmentation, engagement, and performance: real-time segmentation offers immediate benefits. How to set it up? At Mindbaz, we guide you through every step with a clear interface and automatic security rules.

How to Improve Your Deliverability with Orange

Avoiding spam with Orange involves following a few simple but essential best practices. The winning trio: technical setup, relevant content, and responsible sending. Here are the key areas to optimize:

  • Set up a valid and aligned SPF record
  • Enable DKIM and define a DMARC policy
  • Clean your list to remove inactive emails
  • Segment your lists for better targeting
  • Analyze Orange email deliverability reports and adjust continuously
  • And more best practices to reach the inbox at Orange

With Mindbaz, deliverability at Orange in France is monitored in real time. Our platform automatically alerts you to technical issues and makes it easy to correct them, so you don’t fall into Orange's anti-spam filters.

Table of Errors and Solutions

ErrorImpactSolution
Missing SPFEmails blocked directlyCreate a properly aligned SPF record
Missing DKIMUnauthenticated contentGenerate and publish a valid DKIM key
Domain on blacklistTotal loss of deliverabilityChange IP, clean campaigns, request removal
Email without unsubscribe linkIncreased spam complaintsAdd a clear and visible link in the footer
Unsegmented campaignsLow open and click ratesEnable behavioral or real-time segmentation


No time to read everything? Here’s a quick summary:

In Short: What Emails Orange Considers Spam

  • Orange blocks unauthenticated emails or those with overly promotional content.
  • Technical errors like missing SPF, DKIM, or DMARC reduce deliverability.
  • Bad domain or IP reputation can land you straight into spam.
  • Following Orange’s anti-spam rules is crucial to avoid blocks.
  • Segmenting your sends and monitoring Orange’s spam score improves performance.
  • Mindbaz helps media brands with a dedicated solution to optimize deliverability at Orange.


Why does Orange classify certain emails as spam?

Orange marks certain emails as spam when they don’t comply with its security rules, such as missing SPF, DKIM, or DMARC, overly promotional content, or a poor sender reputation.