Creating a DMARC record

DMARC (Domain-based Message Authentication, Reporting and Conformance) record is actually a protocol mostly known for generating reports about the emails you sent and what happened to them. DMARC record should be set up only after DKIM and SPF. This DNS record can be created with an online tool, or you can write it yourself - you need to know which tags to use and their meaning.
Required tags:

1. v -- DMARC-a version. It must be DMARC1, and
2. p -- Is used to specify which policy should be used by the recipient when an email doesn't pass the DMARC check. Policies that exist are:

• none -- Nothing will happen,
• quarantine -- The email will be placed in a quarantine, and
• reject -- The email will be rejected.

1. pct -- Specifies the percentage of suspicious emails that will be subjected to the DMARC policy,
2. rua=mailto:mail@adresa.rs -- This tag specifies the email address to which DMARC reports will be sent,
3. fo -- With this tag, you can specify which fail checks you want to be informed about:

• 0 -- Generate a DMARC fail report if DKIM and SPF checks don't pass,
• 1 -- Generate a DMARC fail report if DKIM and SPF checks return anything but "pass",
• d -- Generate DKIM fail report if an email doesn't pass the DKIM check, and
• s -- Generate SPF fail report if an email doesn't pass the SPF check.

Now, let's look at how you can add your DMARC record to your DNS zone. First, you're going to need to log in to your mCloud portal and navigate to My Services and select mDNS:

Click on AnyCast, and there you can see your domains and a button to add a new domain:

Click on the domain you wish to edit the DNS zone for. On the right, you'll see an option for adding new records:

In the dropdown menu, select TXT as a new record type and then click Add, and a new window will open where you can enter the record:

In the text area Name, enter DMARC selector _dmarc, and in the text area Content, enter your DMARC record. Click on the Submit button, and the record will be saved.