Rotating DKIM keys reduces long-term risk and improves security hygiene. Learn a safe rotation process with minimal downtime.
DKIM key rotation is the practice of replacing your signing keys periodically to reduce exposure if a key is leaked or compromised.
A safe rotation publishes a new selector, verifies DNS propagation, switches signing, and keeps the old selector active until all mail signed with it is no longer in transit. Good rotation avoids abrupt removals that cause failures.