Moving DMARC providers feels more complex than it actually is. The process requires no downtime, no client notifications, and can be completed in a few hours even with hundreds of domains.
This guide walks through the practical steps to migrate from any DMARC provider while maintaining your existing email protection.
The most common trigger for considering a DMARC provider change is cost scaling. As Managed Service Providers (MSPs) or IT teams add more client domains, per-domain pricing models can make DMARC monitoring unexpectedly expensive. Other factors include needing better bulk management tools, API access, or simplified reporting across multiple clients.
Whatever the reason, the migration process remains the same and is less disruptive than most assume.
Export a complete list of all domains from your current DMARC provider. Your export should include:
This inventory becomes your migration checklist and ensures no domains are missed during the transition.
Before making any changes, document each domain's existing DMARC policy record. You want to maintain the same protection level during migration. A domain with p=reject should stay p=reject. A domain with p=quarantine should stay p=quarantine. A domain with no valid DMARC record should be p=none.
Changing policies during migration introduces unnecessary variables and makes troubleshooting more difficult if issues arise.
Note: If you have a very long TTL, this may slow down verifying DNS changes are correct. We would recommend setting TTL in your DNS provider for the DMARC records to 1 hour or lower. If you set it to lower than 1 hour, be sure to revert it once the process is complete.
VerifyDMARC supports bulk domain import through two methods:
CSV Upload:
API Import:
Both methods process hundreds of domains in minutes and you can refer to the Dashboard status indicator for live feedback on your progress as you update records.
VerifyDMARC's DMARC record generator creates a clean valid record while automatically preserving the existing policies of an existing DMARC record. This is important - if a domain has p=reject, the generator maintains p=reject. If a domain has no valid DMARC record, it generates p=none as the starting point.
The generator creates records with the new RUA (aggregate report) destination.
You have two options for updating DNS records if you are preserving existing DMARC records and just updating the RUA:
Option A: Add VerifyDMARC to Existing Record RUA tag
Append your VerifyDMARC reporting address to the current RUA tag:
v=DMARC1; p=reject; rua=mailto:existing@provider.com,mailto:org_0000000@example.verifydmarc.com
This approach allows both providers to receive reports during transition and is good if you are evaluating. VerifyDMARC provides a 30-day trial for any plan.
Option B: Replace RUA Tag
Update the entire RUA tag to point only to VerifyDMARC:
v=DMARC1; p=reject; rua=mailto:org_0000000@example.verifydmarc.com
This makes a clean cutover and is usually preferred if you have already evaluated your new DMARC reporting provider and are moving all your domains.
After you have updated DMARC records, refresh the VerifyDMARC Dashboard or domains page. If DNS has propagated, the domain should show a status of either:
If the domain status is error (red), either DNS has not yet propagated or there is a record/syntax error. Hover over the status for detail.
The platform displays real-time status for all domains, making configuration verification straightforward.
After confirming your domains have a status of Warning or OK, reports should appear in the VerifyDMARC Dashboard within 48 hours:
Domains that do not send email will not show data in the Dashboard, if this is expected, consider marking them as 'Parked' in the VerifyDMARC Domains page.
While you wait, check out our SPF Checker under Insights to see if there are any issues detected with your records.
Keep existing DMARC policies unchanged for at least two weeks after migration. This stability period allows you to:
Once you've collected sufficient reports in the new platform, you can begin policy improvements:
p=none to p=reject (or p=quarantine)p=quarantine can progress to p=rejectThe key is separating the migration process from policy enhancement. Do one, then the other - not both simultaneously.
After migration, take advantage of MSP-focused features:
For domains that don't currently have DMARC records:
p=reject based on resultsWhen managing domains with different policies:
For domains with significant email volume:
Small MSP (Under 50 domains):
Medium MSP (50-200 domains):
Large MSP (200+ domains):
If you're using API integrations with your current provider, plan for updating these connections. VerifyDMARC's API documentation provides endpoints for domain management operations.
While historical reports can be valuable, most operational decisions use recent data. You should only need access to your old DMARC provider for a short time post migration.
The VerifyDMARC support team has guided hundreds of MSP migrations. Common questions and edge cases are well-documented. Support is available throughout the migration process if needed.
If your domains have TLS-RPT set up (look for a _smtp._tls. TXT record) they are likely using SMTP TLS reporting.
Unlike DMARC, TLS reporting does not enforce policy and does not support dual reporting. Therefore there is no operational risk for mail flow and the migration path is clear.
Once you have completed the domain's DMARC setup in VerifyDMARC and confirmed the status is OK or Warning, under Domains, Domain Setup select 'Turn On TLS Reporting'. This will reveal the recommended record to update in the domain's DNS provider, once it has propagated the SMTP TLS Status should show OK (green).
Migrating DMARC providers is primarily a DNS update exercise. The complexity comes from perception, not technical requirements. By following these steps and maintaining policy stability during transition, MSPs can complete migration without client impact or service disruption.
The most important principle: separate migration from policy changes. Move first, optimise second. This approach minimises variables and ensures smooth transition.
Ready to streamline your DMARC management?
VerifyDMARC specialises in bulk domain management for MSPs. Our platform handles migrations efficiently with tools designed specifically for managing multiple client domains.
Start your 30-day free trial to explore the platform and import your domains without commitment.
Why DMARC p=reject beats p=quarantine for MSPs: unauthorised emails fail clearly instead of hiding in spam, so clients blame the real culprit.
A practical guide for MSPs and SMEs to implement DMARC, SPF and DKIM protection for Microsoft 365, Office 365 and Exchange Online email services.
To fix "does not meet the required authentication level" from Microsoft, you need a DMARC record, SPF and DKIM passing, plus SPF or DKIM alignment.