Why is DMARC Important for Email Deliverability?

DMARC is an acronym for Domain-based Message Authentication, Reporting & Conformance. It’s a technical standard used to prevent email phishing and spoofing attacks. DMARC is implemented by adding a DMARC record to the DNS (Domain Name System) of a domain.

The DMARC record tells email servers what to do with messages that appear to come from that domain. Specifically, it specifies which email servers are authorized to send messages on behalf of the domain, and what to do with messages that fail authentication.

So, why is DMARC important? Email phishing and spoofing attacks are very common, and they can be very damaging. Phishing is when an attacker sends an email that appears to come from a legitimate source (like a bank or a social media site) in order to trick the recipient into providing sensitive information or clicking on a malicious link. Spoofing is similar, but instead of pretending to be someone else, the attacker pretends to be the recipient themselves in order to trick other people into giving up sensitive information.

DMARC helps prevent these attacks by making it more difficult for attackers to send fraudulent messages. When a domain has a DMARC record, email servers that receive messages from that domain will check to see if the message is authorized. If the message fails authentication (because it was sent from an unauthorized server or has been tampered with), the email server can take a variety of actions, such as rejecting the message or sending it to the recipient’s spam folder.

The benefits of adding a DMARC record to your domain name are numerous. First and foremost, it can help protect your users from phishing and spoofing attacks, which can help build trust in your brand. Additionally, it can help improve email deliverability, since email servers are more likely to deliver messages that are authenticated through DMARC. This can be especially important for businesses that rely on email marketing to reach their customers.

Implementing DMARC can seem daunting, but it’s actually relatively straightforward. There are many tools available to help generate DMARC records, and many email service providers (such as Google and Microsoft) offer guides on how to implement DMARC. Once the record is in place, it’s important to monitor DMARC reports to ensure that messages are being authenticated properly and to identify any unauthorized activity.

Overall, DMARC is an important tool in the fight against email phishing and spoofing attacks. By adding a DMARC record to your domain, you can help protect your users and your brand, and improve email deliverability.