Tips
What is a PTR Record?
PTR (Pointer) records are used to resolve IP addresses back to domain names, forming the basis for reverse DNS lookups. They're mainly used for email server anti-spam verification.
Importance of PTR Records
1. Essential for mail server setup
2. Improves email delivery success
3. Reduces spam classification risk
How to Use the PTR Lookup Tool?
1. Enter IP address
2. Select PTR lookup type
3. View results:
- Reverse resolved domain
- TTL value
- Response times from different regions
Use Cases
1. Mail server configuration verification
2. Server identity authentication
3. Network troubleshooting
Configuration Tips
1. Ensure PTR matches A record
2. Use meaningful domain for PTR
3. Keep PTR records updated
