Author: Blessing I. Paul
Last Update On: 10-Apr-2023 14:35:07pm
Category: Digital/Internet Marketing, Education, Networking and Security, Technology
Right now, we will use that same dmarc record to protect a domain from spoofing.
DMARC, or Domain-based Message Authentication, Reporting, and Conformance, is an email authentication protocol that helps protect domains from spoofing and phishing attacks. By using a DMARC record, domain owners can specify which mechanisms are used to authenticate email messages sent from their domain and can instruct receiving mail servers to reject messages that do not pass authentication. This can help prevent attackers from sending spam or phishing emails that appear to come from the domain in question.
To use DMARC to protect a domain from spoofing, you will need to follow these steps:
_dmarc.example.com. IN TXT "v=DMARC1; p=none; sp=quarantine; rua=mailto:firstname.lastname@example.org"
In this example, the "v=DMARC1" specifies that this is a DMARC record, and the "p=none" specifies that no action should be taken if the message fails authentication (i.e., "none" means to do nothing). The "sp=quarantine" specifies that messages that fail SPF authentication should be quarantined (e.g., sent to the spam folder), and the "rua=mailto:email@example.com" specifies the email address where DMARC aggregate reports should be sent.
There are many other parameters that can be included in a DMARC record, such as "pct" (percentage of messages subjected to DMARC evaluation), "fo" (failure options for messages that fail DMARC evaluation), and "aspf" (alignment mode for SPF). You can find more information about these parameters in the DMARC specification.
Please like and share our post on:
Comment section is On for this post
Super Admin, Founder, Admin, & Contributor
Blessing Ikechukwu, Paul, is the CEO/Manager of Blomset Drive Technologies, also the founder of this website (www.tech-hint.net).
He's a full stack web developer, digital marketing consultant & SEO analyst, computer security personnel and more, with more than 7+ years' experience. For hire you can contact him. You can check more of his blog post. Follow him on LinkedIn, Twitter and Facebook.
Drop a comment below: