Forward Error PRX2
Question / Problem
What can I do if the Exchange Server responds: "451 4.7.0 Temporary server error. Please try again later. PRX2"?
Answer / Solution
The "451 4.7.0 Temporary server error" in Exchange Server usually indicates a DNS configuration issue. Here are the steps to resolve it:
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Check DNS Configuration:
- Ensure that your Exchange Server is using the correct DNS servers.
- If you have only one domain controller, avoid setting a router as the secondary DNS server. Instead, use the internal DNS/Domain Controller.
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Remove Secondary Public DNS:
- In a typical production environment, a secondary public DNS server should not be configured. The internal DNS servers should handle all forwarding.
By following these steps, you can address the DNS-related issues that might be causing the temporary server error in Exchange Server.