TopicIT Networking →
Simple definition
A selector DKIM identifies the public key DNS used to verify a signature DKIM.
Technical definition
A selector DKIM identifies the public key DNS used to verify a signature DKIM. In the business environment, its configuration must be consistent with the network architecture, security policies and capabilities of the equipment concerned.
What is it used for?
allow rotation and coexistence of several keys.
Practical example
selector1._domainkey.example.com publishes a key.
Common issues
- Inconsistent configuration
- Compatibility or version
- Incomplete dependency diagnosis
Key takeaway: Always adapt the diagnosis to the product version and the architecture actually deployed.