1
records
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | ptr |
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| + Pass | ptr |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| + Pass | ip4 |
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| ? Neutral | all |
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SPF warnings
- The ptr mechanism is slow and discouraged in SPF
19m
_spf.mail.yahoo.com. 1199 IN TXT "v=spf1 ptr:yahoo.com ptr:yahoo.net ip4:34.2.71.64/26 ip4:34.2.75.0/26 ip4:34.2.84.64/26 ip4:34.2.85.64/26 ip4:34.2.64.0/22 ip4:34.2.68.0/23 ip4:34.2.70.0/23 ip4:34.2.72.0/22 ip4:34.2.78.0/23 ip4:34.2.80.0/23 ip4:34.2.82.0/23 ip4:34.2.84.0/24 ip4:34.2.86.0/23 ip4:34.2.88.0/23 ip4:34.2.90.0/23 ip4:34.2.92.0/23 ip4:34.2.85.0/24 ip4:34.2.94.0/23 ?all"