#key rotation

Tagged: key rotation

07 Jul 2026Sam wallness

DKIM Key Rotation: When to Rotate Your Signing Keys and How to Do It Safely

DKIM key rotation limits your exposure if a signing key is ever compromised — but doing it wrong breaks email authentication in transit. This guide covers the safe rotation sequence, including why you must keep the old public key in DNS for 48–72 hours after switching.

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DKIM Key Rotation: When to Do It and How to Avoid Breaking Email

Email Authentication

13 Jun 2026Sam wallness

DKIM Key Rotation: When to Do It and How to Avoid Breaking Email

DKIM keys should be rotated regularly, but doing it wrong can break authentication for messages already in flight. This step-by-step guide shows how to rotate selectors safely.

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