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SPF Records for Email. One DNS record to add for email… | by Teri Radichel | Cloud Security | Medium
Docker's default IPv6 setup breaks SPF checks · Issue #1438 · docker-mailserver/docker-mailserver · GitHub
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![Sooraj Sathyanarayanan on X: "Performed Email security standards tests with @internet_nl. https://t.co/9PppIBrxK4 - test to check if the service supports modern internet standards like IPv6, DNSSEC, DMARC, DKIM, SPF, STARTTLS, DANE, RPKI. Sooraj Sathyanarayanan on X: "Performed Email security standards tests with @internet_nl. https://t.co/9PppIBrxK4 - test to check if the service supports modern internet standards like IPv6, DNSSEC, DMARC, DKIM, SPF, STARTTLS, DANE, RPKI.](https://pbs.twimg.com/media/GCN47tfaAAAvP4v.png)