DMARC

The advancements in the field of science and technology lead to the establishment of modern civilization. As the earth evolved into a global village, it brought a deal of ease to our lives. But with all the positive aspects there came consequences.

The world of the internet which became the mode of life was now threatened by cybercrime. It increased as computers became central to government and commerce.

Email

Email fraud is one of the most common means by which organizations and companies lose sensitive data. Hackers, spammers and phishers intend to compromise user data. Email is involved in 90% of all network attacks. Email is widely used for business purposes so there is a dire need to make it secure.

But how do you do that?

That’s when DMARC comes in. DMARC Report Analyzer is developed to give email domain owners the ability to protect their domain from illegal use.

Benefits of DMARC

  • DMARC plays its role in the elimination of security threats.
  • By using DMARC companies get an evident image of the legal and fraudulent use of their domains.  
  • Before the arrival of DMARC it was troublesome to know whether an email was genuine or not.
  • For verification the email sender had to navigate some complex anti-spam filters which were hectic and time-consuming.
  • DMARC record makes it easier for Internet Service Providers (ISPs) to prevent domain spoofing.

How does it work?

DMARC defines a way for a domain owner to publish its email authentication practices.

DMARC has two basic building blocks

(1) SPF:

SPF is a way of publishing servers that are authorized to send an email on behalf of a domain.

It informs the receiver of the email that how legitimate is the sender’s email.

(2) DKIM:

DKIM is a method of adding a tamper-proof domain seal to an email

DKIM adds a digital signature to each message being sent. The receiving servers use the signature for verification.

DMARC is always used with SPF and DKIM email authentication methods.

DMARC bring consistency to how these two technologies are configured so that when a piece of email is received a simple check can be performed to see if the email comes from the domain as it says

Once the DMARC DNS entry is published, any receiving email server can certify the incoming email based on the instructions. If the email upholds the authentication, it can be trusted and is delivered. If the email doesn’t pass the authentication test it gets rejected

Importance

According to a report, every year $500 million is scammed via cyber-attacks so, you need to make sure your company or brand is safe.

Function

DMARC tells receiving mail servers what to do when they get a message that appears to be from your organization but doesn’t uphold the authentication requirements in your policy records.

Cost

DMARC policies are published in public DNS and available to everyone. Since there is no restriction or licensing, any eager party is free to implement it.