DMARC (Domain-Based Message Authentication, Reporting & Conformance) is built on top of DKIM and SPF. Together they are the best practice to prevent email spoofing and make your emails more authenticated.
DMARC gives the owner of a sending domain some control over what happens when that server receives a spoofed email — either do nothing, block it (reject), or send it to spam/junk.
Passing the DMARC authentication doesn't guarantee you 100% deliverability on your campaigns.
Your emails will still be subject to other checks, like scanning for spammy content, or sender reputation checks, before it lands in your subscribers' inboxes.
Yet, DMARC is not recommended for every business. For instance, smaller brands don’t use DMARC because the main goal is to avoid phishing emails that could be sent in your brand’s name.
It means if your brand is well-known and has a good reputation the more cybercriminal will try to send emails in your company’s name to steal passwords and personal data from people.
Usually, small businesses don’t have to use it at all. And we don't provide DMARC in Automizy for now.