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Operator notes on Cloudflare-native email.

Long-form writing about self-hosted email in D1, Workers-native routing, the REST API, and the parts of the platform that show up in the security review.

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1 of 22 posts match

May 2026
Deep Dive
12 min read

Cloudflare API token permissions, explained

The exact scopes Flowmails needs, the principle of least privilege, and the audit trail you can show your security reviewer.

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Cloudflare-native email for custom domains. Self-hosted in your Cloudflare account — inbox, outbox, and routing rules live in your own D1.

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