Enhancing Email Security with SPF and DKIM with cPanel

Aug 30, 2023


In today’s digital age, email has become an integral part of communication. However, with the rise of phishing attacks and email spoofing, it is crucial to implement strong security measures to protect your email infrastructure. Two essential tools in this regard are SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail). In this article, we’ll explore what SPF and DKIM are, the risks of not using them, and how to configure them in cPanel.

Understanding SPF

Sender Policy Framework (SPF) is an email authentication method that helps prevent email spoofing. It allows domain owners to specify which mail servers are authorized to send emails on behalf of their domain. By publishing SPF records in the DNS, recipients can verify the authenticity of incoming emails and reduce the chances of spam or malicious messages.

Exploring DKIM

DomainKeys Identified Mail (DKIM) is another email authentication technique that adds a digital signature to outgoing emails. This signature is generated using cryptographic keys linked to the sending domain. When receiving servers see a DKIM signature, they can verify the message’s integrity and ensure it hasn’t been tampered with during transit.

The Risks of Not Using SPF and DKIM

Failing to implement SPF and DKIM leaves your email infrastructure vulnerable to various threats. Without SPF, malicious actors can easily forge your domain’s identity, leading to phishing attacks and unauthorized use of your brand. Similarly, without DKIM, the integrity of your emails becomes questionable, making it easier for attackers to modify or impersonate your messages.

Configuring SPF and DKIM in cPanel


1. SPF Configuration:

– Log in to your cPanel account and navigate to the “Email” section.
– Click on “Authentication” or “Email Authentication.”
– Enable SPF by selecting the appropriate option and follow the on-screen instructions to configure your SPF record.
– Save the changes, and your SPF record will be published in the DNS.

2. DKIM Configuration:

– In cPanel, go to the “Email” section and click on “Authentication” or “Email Authentication.”
– Enable DKIM signing by selecting the relevant option.
– Generate the DKIM key pair, which includes a private and public key.
– Publish the DKIM public key in the DNS records of your domain.
– Save the changes, and your emails will now be signed with DKIM.


Implementing SPF and DKIM significantly enhances the security of your email infrastructure. By preventing spoofing and ensuring message integrity, you can protect your brand reputation, reduce the risk of phishing attacks, and enhance the trustworthiness of your emails. With the straightforward configuration options available in cPanel and WHM, it’s easier than ever to implement these essential email security measures. Take the necessary steps today to safeguard your communication channels and maintain a secure email environment. And if you need help just ask our support tech to assist you or to validate if your SPF and DKIM records are created correctly. Rest assured that by default we install DKIM and SPF records on any new account created (transferred accounts may not automatically get the correct settings).

Questions? We can help.