You add DMARC by creating a TXT record on the subdomain _dmarc with the value "v=DMARC1; p=none" in the DNS editor in the Loopia Customer Zone. The record makes your domain meet the requirements of large email providers such as Gmail, Yahoo and Microsoft, which helps your email reach the recipient.
This guide assumes that your domain’s DNS is managed at Loopia. If your DNS is managed by an external DNS provider, add the same value with that provider instead.
What does the DMARC record do?
DMARC (Domain-based Message Authentication, Reporting and Conformance) tells the recipient’s mail server what to do with email that appears to come from your domain but fails the SPF and DKIM checks.
The value p=none means the recipient should not do anything special with such email. The record therefore does not by itself protect against forged senders. Its benefit is that Gmail, Yahoo and Microsoft (Outlook and Hotmail) require sending domains to have a DMARC record, and p=none is enough to meet that requirement.
Step 1: Check that your domain has SPF and DKIM
DMARC builds on SPF and DKIM, so first check that both exist. All domains with email at Loopia should already have them.
- Log in to the Loopia Customer Zone.
- Click your domain name and select DNS editor.
- Check that there is a TXT record under the subdomain @ that starts with
v=spf1. This is your SPF record. - Check that there is a subdomain ending in ._domainkey with a TXT record that starts with
v=DKIM1. This is your DKIM record.
Is SPF or DKIM missing? Contact Loopia support and we will help you before you add DMARC.
Step 2: Add the DMARC record
- Click Add subdomain in the DNS editor.
- Fill in the form with the details below. Type quotation marks (
") before and after the value in the Data field. - Click Add.
Subdomain: _dmarc Type: TXT TTL: 300 Data: "v=DMARC1; p=none"
Step 3: Check that the record is correct
The subdomain _dmarc now appears in the DNS editor with a TXT record with the value "v=DMARC1; p=none". It can take up to 24 hours before the DNS change has propagated and takes effect.
A domain can only have one DMARC record. If there is already a TXT record under _dmarc, edit it instead of adding another one. With two DMARC records, neither of them applies.
Other DMARC values and their risks
You can make the DMARC record stricter once you know that all email from your domain passes SPF and DKIM. Common values are:
p=quarantine– email that fails the checks goes to the recipient’s spam folder.p=reject– email that fails the checks is rejected and never reaches the recipient.rua=mailto:dmarc@yourdomain.com– the recipients’ mail servers send reports to this address about email sent in your domain’s name.pct=50– the policy applies to only part of the email, in this example half.
The values are combined in the same record, for example "v=DMARC1; p=quarantine; rua=mailto:dmarc@yourdomain.com".
The risk with p=quarantine and p=reject is that legitimate email is stopped. If you send email from your domain through services other than Loopia – for example a newsletter tool, an online shop, a CRM system, the contact form on your website or Microsoft 365 – those services must also pass SPF or DKIM for your domain. Otherwise that email goes to spam or disappears completely, often without you noticing.
The rua reports are technical XML files and can be numerous. Use an address you actually read, or a service that summarises the reports for you.
Start with p=none and rua, read the reports for a few weeks, then move on to p=quarantine and finally p=reject. Loopia support can help you add ready-made DNS records but does not support designing or troubleshooting stricter DMARC settings.
Related guides
- How do you add an SPF record for your domain in the Loopia DNS editor?
- Why does your outgoing email end up in the recipient’s spam folder?
Last checked: 2026-11-09