Like Gmail, Yahoo, and Microsoft, Orange.fr—one of the leading ISPs in France—has updated its email delivery requirements on June 12, 2025, to ensure clean, authenticated, and compliant email traffic reaches its user base. If you’re sending email campaigns to Orange.fr or Wanadoo.fr users, here’s a detailed guide to help you maintain inbox placement, avoid bounces, and stay off blocklists.
Large Sender Requirements (1,000+ Emails/Day)
1. Comply with Industry Standards
- Follow M3AAWG Best Practices
- Adhere to SignalSpam’s Charter (French anti-spam partnership)
2. Use Orange Feedback Loop via SignalSpam
Only authorized SignalSpam members can access Orange’s FBL.
3. SPF, DKIM, DMARC Must All Pass
All authentication methods must be aligned and correctly configured.
4. Set a Feedback-ID Header
Use Google’s Feedback-ID: header structure for better traceability.
5. Maintain a Transparent Web Presence
- Your
Header Fromdomain must host a website that includes:- Legal notice
- Company identity & address
- User consent documentation
Complaint Rate Threshold Changes (Important!)
| Period | Max Allowed Spam Rate |
|---|---|
| Before Aug 2025 | 1% |
| Aug 2025 onwards | 0.6% |
| Planned future target | 0.3% |
Exceeding this may trigger rate-limiting, spam tagging, or delivery blocks.
General Email Delivery Best Practices
To ensure your emails are accepted and not flagged as spam by Orange:
1. Comply with SMTP Standards
- Your messages must follow standard email formats outlined in:
- Ensure all mandatory headers are included.
2. Monitor IPs & Domains Against Blocklists (RBLs)
Use tools like MxToolBox or check directly:
- Abusix: lookup.abusix.com
- Spamhaus: check.spamhaus.org
- Cloudmark CSI: csi.cloudmark.com
3. Use a Static Sending IP
Dynamic IPs are not allowed for outbound mail traffic.
4. Set Up Proper DNS Records
- Valid PTR (reverse DNS) for the IP
- Domain must have valid A or MX records
- Check DNS via IntoDNS or MxToolBox
5. Use Proper HELO/EHLO
- Use a fully qualified domain name (FQDN), e.g.,
mail.yourdomain.com
6. Enable SMTP Encryption
- TLS 1.2 or above is strongly recommended for secure connections
Authentication Requirements (Mandatory)
Orange now requires at least one of the following, but recommends all three:
| Mechanism | Requirement |
|---|---|
| ✅ SPF | Mandatory – Configure via your DNS TXT |
| ✅ DKIM | Strongly recommended |
| ✅ DMARC | Strongly recommended |
| ✅ ARC | Required for forwarded messages |
Mailing List Hygiene
- Clean your mailing lists regularly
- If you get:
Invalid recipient, 416→ This address doesn’t exist on Orange/Wanadoo
Sending Limits (per IP)
| Parameter | Limit |
|---|---|
| Max recipients per message | 100 |
| Max messages per connection | 100 |
| Max simultaneous connections | 2 |
| Max email size | 45 MB |
Limits may vary based on your reputation.
Don’ts
- ❌ Don’t buy email lists
- ❌ Don’t send without proper double opt-in
- ❌ Don’t ignore bounces—track and suppress hard bounces
- ❌ Don’t skip one-click unsubscribe (RFC8058)
Need Help with Orange Delivery?
If you’ve reviewed this checklist and are still facing deliverability issues like:
- OFR_506 error codes
- Excessive spam folder placement
- Throttling or rejection
👉 Submit an issue to the Orange deliverability team via their official contact form, and select: A problem sending emails to Orange or Wanadoo addresses (deliverability issue)
You may also read: If You’re an Email Sender You Must Know Key Takeaways From Gmail and Yahoo New Requirement
Last Words
Staying compliant with Orange.fr’s delivery policies is essential for maintaining inbox placement. Whether you’re a small sender or operate at scale, these guidelines ensure cleaner lists, better engagement, and fewer blockages.
Bookmark this post for your team or clients and revisit frequently for updates.
