DMARC/ Domain-based Message Authentication Reporting & Conformance

DMARC/ Domain-based Message Authentication Reporting & Conformance

In today’s digital world it comes as no surprise that email has become one of the most popular communication tools used in companies and establishments. But are you aware how big percentage of your emails goes in spam? According to data collected by Statistica in December 2021 45.37% of all emails were treated as spam. There are only negative consequences of this as it decreases your sales (the client will not see your offer) as well as diminish your reputation and lower the trust of those potentially interested in your offer. 

Thus what can you to make sure that your messages reach the inbox. One of the techniques you can apply is using systems which help to authenticate emails such as SPF, DKIM and DMARC. These techniques help to verify if the email comes from a legal sender and can help to reduce the risk of being put in spam. 

What is DMARC?

DMARC is an acronym of the phrase Domain-based Message Authentication Reporting and Conformance. DMARC is a term defining a system whose aim is to authenticate electronic mail, by connecting as well as supplementing two most popular techniques:

DKIM (Domain Keys Identified Mail) – it is a protocol allowing to verify by the suppliers the source of the email. Cryptographical authentication with which is signed each message accounts for a high level of safety of this technique.

SPF (Sender Policy Framework) –it allows to define who can send emails from a certain domain. In DNS (Domain Name Service) is entered a position which gives the recipient information if the received message has really been sent by a given sender. 

DMARC record can also be a part of this domain. If it is not visible form the administrative level it has to be created. 

Operation of DMARC

DMARC in his working has a few crucial rules on which the above mentioned techniques are based. The behaviour of the mechanism depends on how in DNS sphere is defined DMARC record. Its value is determined by security id that is various parameters which allow to correctly identify the message.

The rule of operation is simple in its complexity. The recipients server verifies if in DNS sphere of a given domain from the sender’s email is included DMARC position. If yes then the message is tested by DKIM and SPF. If the verification is negative the message is deleted or put in spam. 

The most important aspect is that DMARC system sends the sender a report with the details of the situation. Thanks to this the owner of the domain knows that someone is sending unauthorised messages from his address. 

Thanks to the report you can also receive feedback whether your message hasn’t been put in SPAM folder. Based on that you can implement any necessary changes which will allow to avoid such an inconvenient situation which interferes with the communication within the company or between contractors. 

What is DMARC used for?

Certifying your email with the use of DMARC mechanism allows to protect the emails which have individual addresses in the domain. The main goal is to secure the domain against cybernetic attacks which use emails, such as poshing or spoofing. The aim of these is to get access to the users’ data. Using DMARC allows to increase safety and reduce the risk of scam. 

DMARC mechanism has a few crucial advantages. First of all, it is free and widely available technology. Additionally, implementing and configurating it is very easy. Since the SPF and DKIM protocols are well used and filled in the level of safety is very high. Feedback in a form of delivery reports allows to verify whether there has been a cybernetic attack in the domain. 

Using the above mentioned techniques of authenticating the email and remembering the content of the email you can be sure that emails will reach the recipient and will not be lost in hundreds of messages in spam. If you would like us to support you in DMARC configuration – contact us via email (we regularly check spam folder). 

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