Protect your email domain without stopping genuine mail

Managed DMARC gives your business a clearer view of email activity linked to your domain.

Reports can help show which services are sending email, whether messages are passing authentication checks and where messages may be failing.

That matters when several systems send email on your behalf. Your team may use Microsoft 365 for normal email, a marketing platform for newsletters, a finance system for invoices and a website tool for enquiry replies. Each service may need the right DNS records or settings before it is properly authorised.

Chrome can help review the reports and turn them into practical next steps. That might mean updating DNS records, checking a third-party platform, removing an old sending service or asking another supplier to confirm their setup.

Raw DMARC reports can be difficult to read. The useful part is knowing what they mean for your business.

Many businesses start DMARC in monitoring mode.

This means reports are collected, but receiving mail systems are not asked to block or quarantine failed messages yet.

Monitoring is a useful first step because it gives your team time to see what is happening before delivery rules become stricter.

Once genuine sending services have been checked, the policy can often move towards a stronger setting. That may mean moving to a DMARC quarantine setting first, asking receiving systems to treat failed messages with caution, then moving towards reject when the setup is ready.

Chrome can help you understand when a change is sensible. We’ll look at the reports, check known senders and explain what could be affected before a policy change is made.

This staged approach helps reduce the risk of genuine email being blocked, and gives your team time to fix issues before enforcement becomes stricter.

Many UK businesses use Microsoft 365 for email, so it is often the first place to check.

Chrome can review your Microsoft 365 email domain, DNS records, SPF, DKIM and DMARC settings. We can also look at other services that send email using the same domain.

This matters because Microsoft 365 may only be one part of the picture. Your domain may also be used by a CRM, website, marketing platform, finance tool or support system.

Each approved sender needs to be understood before stronger DMARC policies are applied.

We’ll explain what Chrome can manage, what your domain provider may need to change and where another supplier should confirm their own sending settings.

Your team should know which systems are allowed to send email and who looks after each part.

Managed DMARC helps protect your domain from being used in spoofed messages. It does not replace email security.

Email security helps protect users from suspicious messages, unsafe links, harmful attachments and impersonation attempts.

Cyber security awareness training helps your team spot phishing emails, fake login pages and unusual requests, using the same short lessons, phishing simulations and clear reporting covered on our awareness training page.

Dark web monitoring can also help when credentials linked to your domain appear in supported breach sources, and our dark web monitoring page explains why an alert should lead to practical action, such as changing passwords, checking accounts and reviewing wider security measures.

These services support each other. DMARC helps protect the domain. Email security helps protect the inbox. Training helps the person making the decision.

Chrome can help bring those parts together through one team.

DMARC is not usually a set-and-forget job.

Your business may add new systems, change marketing platforms, move website providers or introduce a new CRM. Each change could affect how email is sent from your domain.

Chrome can help review DMARC reports and keep an eye on changes over time.

Reports can show passing and failing sources, suspicious activity, unauthorised senders and services that may need attention. The exact reporting depends on the platform used and the domain setup.

We’ll explain what the reports show, what action is needed and what can be left alone.

That keeps DMARC useful after the first setup and gives your team a clearer place to start when something changes.

Managed DMARC connects with Microsoft 365, DNS hosting, email security, website tools, CRM platforms, marketing systems and supplier management.

Chrome can help bring these areas into one clearer picture.

For example, a failed DMARC result may involve a marketing platform. A spoofed email may need email security and user reporting. A domain change may involve your website provider, Microsoft 365 and DNS records.

We’ll explain what Chrome manages and where another provider remains responsible. That means your team knows who to contact when something needs checking.