Definition
DMARC and BIMI work together. DMARC authenticates your email and tells receivers what to do with failures, while BIMI displays your verified logo next to messages that pass, making legitimate mail recognisable at a glance.
BIMI only shows logos on DMARC-passing mail, which is why authentication is the prerequisite. Together they fight spoofing and strengthen brand trust in the inbox.
DMARC provides the security backbone, and BIMI adds visible recognition, so together they both protect and promote your brand. The logo reward gives legitimate senders an incentive to keep authentication strong. Implementing them in the right order avoids wasted effort.
How They Complement Each Other
DMARC reduces phishing by punishing unauthenticated mail, and BIMI rewards legitimate senders with visible branding.
This pairing increases recognition and engagement because recipients learn to look for your verified logo.
Why It Matters
DMARC and BIMI work together to both authenticate and brand your mail. Combined, they fight spoofing and increase recognition, making the inbox safer and your brand more trusted.
Best Practices
- Get SPF, DKIM and DMARC working first.
- Publish a BIMI record pointing to your logo.
- Add a VMC for broader logo support.
- Get SPF, DKIM, and DMARC working and aligned first.
- Publish a BIMI record pointing to a hosted logo.
- Add a VMC for the broadest logo support.
- Monitor DMARC reports to confirm a healthy pass rate.
- Review logo display across providers after setup.
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Related Glossary Terms
Email Authentication Protocols
Email authentication protocols are technical standards that verify the identity of an email sender, helping mailbox providers distinguish legitimate mail from spam and phishing.
BIMI
BIMI (Brand Indicators for Message Identification) is an email standard that allows brands to display their logo next to their emails in supported email clients. It requires DMARC enforcement at quarantine or reject policy.
Brand Entity (Email)
A brand entity is how AI and search systems identify your brand as a distinct, trustworthy thing with attributes, and a consistent email identity strengthens it.
DKIM Alignment
DKIM alignment is the DMARC requirement that the domain in the From header matches the domain in the DKIM signature, confirming the visible sender domain is authenticated.
DKIM (DomainKeys Identified Mail)
DKIM (DomainKeys Identified Mail) is an email authentication method that uses digital signatures to verify that an email was not tampered with during transit and comes from a authorised domain.
DMARC Aggregate Report
A DMARC aggregate report is a machine-readable XML summary that receiving mail servers send to domain owners daily to show authentication results for their email traffic.
Frequently Asked Questions
BIMI shows logos only for DMARC-passing mail, so authentication must work before branding appears. DMARC provides the security backbone, and BIMI adds visible recognition, so together they both protect and promote your brand.
Visible brand logos that build recognition and trust, while DMARC provides the authentication backbone. The logo reward gives legitimate senders an incentive to keep authentication strong.
Authentication. Solid SPF, DKIM, and DMARC are required for BIMI to work. Implementing them in the right order avoids wasted effort.
Indirectly, through recognition and engagement, though it does not directly change filter decisions. DMARC provides the security backbone, and BIMI adds visible recognition, so together they both protect and promote your brand.
No. BIMI requires DMARC-passing mail to display the logo. The logo reward gives legitimate senders an incentive to keep authentication strong.