How to fix 550 5.7.1.
- Retrying or final
- Final
- A 5xx reply. The server will not accept this message. Resending it unchanged fails again.
- Who is at fault
- Sender
- Your authentication, reputation, content, or sending pace.
- Severity
- ErrorPolicy Violation
Orange rejected the message because the content or sender reputation violated spam policies.
Providers word the same code differently. Their fixes differ too.
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