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DMARC is setup through your DNS. You don't have to make any changes to your email server.<br />
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Make sure you have an SPF and DKIM record setup before setting up DMARC
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DMARC is setup through your DNS. You don't have to make any changes to your email server.

Make sure you have an SPF and DKIM record setup before setting up DMARC

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Do you have a sample of how a DMARC record looks like?<br />
<br />
I have both SPF and DKIM already setup.
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Do you have a sample of how a DMARC record looks like?

I have both SPF and DKIM already setup.

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Is Domain-based Message Authentication, Reporting and Conformance(DMARC) a configuration on my public DNS only? &nbsp;Do I need to configure anything on my email gateway?<br />
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Thanks.
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Is Domain-based Message Authentication, Reporting and Conformance(DMARC) a configuration on my public DNS only?  Do I need to configure anything on my email gateway?

Thanks.

How to setup DMARC?

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.