DMARC (Domain-based Message Authentication, Reporting, and Conformance) is a tool that helps protect your email domain from being used for spam or phishing. If you own a domain, here’s what you need to know about DMARC in simple terms.
Setting Up DMARC
To start using DMARC, you need to create a DMARC policy record in the DNS (Domain Name System). The DNS is like a phone book for the internet. It translates domain names (like www.example.com) into IP addresses that computers can understand.
Creating a DMARC policy record is like adding a new entry to this phone book. The entry tells email servers how to handle emails from your domain.
Making the Most of DMARC
To get the most out of DMARC, you should do two things:
- Set up an address to receive reports: DMARC can send you reports about the emails being sent from your domain. These reports can help you spot any suspicious activity. Because these reports can be quite large, it’s a good idea to set up a dedicated email address to receive them. This email address will be visible to the public, so make sure to protect it from abuse.
- Use authentication technologies: DMARC works best when used with other email authentication technologies like DKIM (DomainKeys Identified Mail) and SPF (Sender Policy Framework). These technologies help verify that an email really did come from your domain. They’re like a digital signature or seal of approval on your emails.
Remember, this is a simplified explanation. In reality, setting up DMARC and email authentication technologies involves a lot of complex processes and technologies. But hopefully, this gives you a basic understanding of what you need to do as a domain owner to implement DMARC.
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