DKIM

DKIM, which stands for DomainKeys Identified Mail, is an email authentication method that helps prevent email spoofing and tampering. It works by allowing the sender to attach a digital signature to their outgoing emails, which can be verified by the recipient’s email server.

When an email is sent using DKIM, the sender’s domain adds a unique cryptographic signature to the email header. This signature is generated using a private key that only the sender possesses. The recipient’s email server can then use the corresponding public key, which is published in the sender’s DNS records, to verify the authenticity of the signature.

By verifying the DKIM signature, the recipient’s email server can ensure that the email has not been altered during transit and that it was indeed sent by the claimed sender. This helps prevent email spoofing, where malicious actors impersonate legitimate senders to deceive recipients and carry out phishing attacks or other fraudulent activities.

DKIM provides an additional layer of security for email communications and enhances trust between senders and recipients. It helps combat spam, phishing, and other forms of email fraud by allowing email providers to verify the authenticity of incoming messages. Additionally, DKIM can also help improve email deliverability as it signals to email servers that the sender has taken steps to authenticate their emails.

If you would like to learn more about DKIM and email authentication, you can read our special blog post that covers this topic more in-depth.