Free DKIM Generator Tool

Secure Your Email Delivery with Our Easy-to-Use DKIM Generator

Your DKIM DNS Record

DNS Host (Selector):

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This is the host name (subdomain) where your DKIM public key is published.

DNS Value:

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This is the value for the DNS record. It includes your public key and tells receiving email systems how to verify messages signed with your key.

Private Key

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This is your private key. Keep it secure and do not share it. You will need this key to sign your outgoing emails.

Public Key

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This is your public key. It is safe to share this key as it is used by others to verify your signed emails.

What is DKIM and Why is it Important?

DKIM (DomainKeys Identified Mail) is an email authentication method that helps protect email senders and recipients from spam, spoofing, and phishing. It involves attaching a digital signature to emails, which can be verified by the recipient using the sender’s public key published in the DNS record. DKIM is crucial because it helps maintain the integrity and authenticity of the email content, improving trust and increasing email deliverability rates.

Learn How DKIM Works

Frequently Asked Questions

A DKIM selector is a specific attribute used in the DKIM signature to help identify the DKIM public key in the DNS record. It allows senders to use multiple keys and policies simultaneously.

Generally, a longer key provides better security. Most organizations use 2048-bit keys as they offer a good balance between security and computational efficiency. However, for maximum security, 4096-bit keys are recommended, though they require more computational resources.

No, DKIM is part of a suite of email authentication methods, including SPF and DMARC, that collectively help improve email deliverability and security. It’s important to implement all three to ensure the best results.

Yes, the same DKIM selector can be used across multiple domains. However, each domain must have its own DKIM record in its DNS settings.

It’s recommended to rotate DKIM keys at least annually. Frequent rotation helps mitigate the risk of key compromise and ensures the security of your email authentication setup.