|
|
|
|
SPF Record Checker
|
|
|
|
|
|
Check and analyze SPF (Sender Policy Framework) records for any domain. This tool validates SPF syntax, counts DNS lookups, and explains each mechanism.What this tool checks:- SPF Record Validation - Verifies that the SPF record syntax is correct and follows RFC standards
- DNS Lookup Count - SPF has a limit of 10 DNS lookups. This tool counts all lookups including those in included records to ensure you stay within the limit
- Mechanism Explanation - Breaks down each SPF mechanism (include, ip4, ip6, a, mx, etc.) and explains what it does
- Include Tree Resolution - Recursively resolves all include: and redirect= directives to show the complete SPF policy chain
- Security Warnings - Identifies potential security issues like +all (allows anyone to send), deprecated mechanisms, or multiple SPF records
Why SPF matters:SPF helps prevent email spoofing by specifying which mail servers are authorized to send email for your domain. A properly configured SPF record improves email deliverability and protects your domain reputation. Common issues: - Multiple SPF records - causes SPF to fail
- Exceeding 10 DNS lookup limit - causes SPF to fail
- Using +all - allows anyone to send email (major security risk)
- Missing SPF record - makes domain vulnerable to spoofing
|
|
|
|
|
|
|
Choose language: Deutsch English Español Français Italiano Nederlands Polski Português Русский 中文 日本語 한국어
|
|
Please let us know if you have any suggestions on how to make this website better. |
|
|
InfoByIp.com - tools for software engineers and system administrators.
|
|
|
By using this website, you signify your acceptance of Terms and Conditions and Privacy Policy.
© 2026 InfoByIP.com All rights reserved.
|