ONLINE
Deliverability Letter

OFR004_408

OFR004_408 Message Rate Exceeded

Rate Limiting

Orange throttled the IP because message volume exceeded the allowed rate.

OFR004_408 is similar to OFR004_104 but focuses on messages per hour rather than open connections.

Severity

WARNING

Provider

Orange

Reference

OFR004_408

Last Reviewed

2025-06-01

How to Fix OFR004_408

Follow these steps to resolve this Orange SMTP error and restore normal delivery.

  • ✓Spread campaigns across multiple hours and days instead of one batch.
  • ✓Monitor messages-per-hour metrics for Orange domains specifically.
  • ✓Use IP pools to distribute high-traffic campaigns when reputation allows.
  • ✓Avoid resending the same creative repeatedly within a short window.

Helpful Resources

More Orange SMTP Codes

Keep these related troubleshooting guides handy while addressing OFR004_408.

421 OFR004_104 – OFR004_104 Too Many Connections
WARNING
421 OFR004_105 – OFR004_105 Service Refused
WARNING
421 OFR_999 – OFR_999 IP Suspended (2 Hours)
CRITICAL
421 SPF Check Failed – SPF Check Failed
ERROR

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