421 OFR004_301
OFR004_301 Suspicious Traffic
Orange detected a surge in suspicious traffic and temporarily throttled the IP.
OFR004_301 often follows sudden template changes or risky URLs. Without adjustments, it can progress to a permanent block.
Severity
WARNING
Provider
Orange
Reference
OFR004_301
Last Reviewed
2025-06-01
How to Fix 421 OFR004_301
Follow these steps to resolve this Orange SMTP error and restore normal delivery.
- ✓Review recent creative, landing pages, and tracking links for risky content.
- ✓Confirm the IP is not shared with other senders pushing questionable traffic.
- ✓Slow delivery and focus on most engaged Orange recipients first.
- ✓Log incidents for escalation if throttles occur more than twice in a day.
Helpful Resources
More Orange SMTP Codes
Keep these related troubleshooting guides handy while addressing 421 OFR004_301.
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