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邮件 / DNS
SPF 记录检查器
查找并解析域名的 SPF TXT 记录。
关于此工具
Use this SPF checker online to validate your SPF record syntax and effective sender policy in seconds. It is a practical tool for email admins who want to reduce spoofing risk and improve deliverability.
The free SPF record checker helps you catch common mistakes like excessive DNS lookups or missing include chains. Clean SPF configuration supports stronger domain trust and more stable inbox placement.
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常见问题
- What does an SPF checker validate?
- It verifies SPF syntax, mechanism order, and policy structure so you can confirm that authorized sending hosts are defined correctly.
- Why does SPF matter for deliverability?
- Mailbox providers use SPF as one of the authentication signals to evaluate whether a sender is legitimate.
- Can SPF alone stop spoofing?
- SPF helps, but strongest protection comes from SPF together with DKIM signing and DMARC policy enforcement.