How to Add a DMARC Record in OVH

OVHcloud (OVH) manages millions of domains across Europe and beyond. If yours is one of them, adding a DMARC record takes only a few minutes through the OVH control panel. This guide walks through every step.

Why You Need DMARC

Without a DMARC record, attackers can send phishing emails that appear to come from your domain and you have no visibility into it. DMARC tells mail providers how to handle messages that fail authentication and delivers aggregate reports showing every sender using your name.

Use the free DMARC record checker further down this page to confirm whether you already have a record before making changes.

Prerequisites

• An OVHcloud account with access to the domain
• SPF and DKIM already set up (recommended)
• A mailbox to receive aggregate reports

dmarccreator.com can generate a DMARC record for you if you need help building one.

Step 1: Open the DNS Zone

1. Log in to the OVHcloud Control Panel
2. Click Web Cloud in the top menu
3. Expand Domain names in the left sidebar and click your domain
4. Click the DNS Zone tab

You will see the current DNS records.

Step 2: Add the DMARC TXT Record

1. Click Add an entry in the top right
2. Choose TXT
3. Click Next
4. Fill in the fields

Important notes:

• Enter only _dmarc as the sub-domain; OVH appends your domain
• OVH expects the value wrapped in double quotes
• Use a mailbox you actually check for the rua tag

Click Confirm

Click Next and then Confirm to save the record.

Step 3: Verify the Record

Example DMARC Records

Monitoring Only (Start Here)

v=DMARC1; p=none; rua=mailto:[email protected]

Quarantine Policy

v=DMARC1; p=quarantine; rua=mailto:[email protected]

Reject Policy

v=DMARC1; p=reject; rua=mailto:[email protected]

Editing an Existing Record

1. Locate the _dmarc TXT record in the zone
2. Click the three-dot menu on the right and choose Modify entry
3. Update the value (keep the quotes)
4. Click Next and then Confirm

Common Mistakes

Forgetting the Quotes

OVH does not add quotes automatically. If they are missing, the record may be stored incorrectly.

Typing the Full Domain

Entering _dmarc.yourdomain.com in the sub-domain field creates an invalid name. Use only _dmarc.

Using a DNS Zone That Does Not Match Nameservers

If your domain's nameservers point elsewhere, edits in OVH have no effect. Check the General information tab to confirm.

Multiple DMARC Records

DMARC requires exactly one record. Delete any duplicates.

What To Do After Publishing

Publishing with p=none is observation only. To actually block spoofing:

1. Collect reports for 2-4 weeks
2. Fix any senders failing SPF or DKIM alignment
3. Move to p=quarantine
4. Advance to p=reject

See the complete DMARC guide for the full rollout.

Complete Checklist

• [ ] Opened the OVH DNS Zone
• [ ] Added a TXT record with sub-domain _dmarc
• [ ] Wrapped the value in double quotes
• [ ] Saved and verified with the DMARC checker

Monitor Your DMARC Records

Checking once is good. Monitoring continuously is better. The Email Deliverability Suite watches your SPF, DKIM, DMARC, and MX records daily and alerts you when something breaks.