BIMI (Brand Indicators for Message Identification) is a DNS record that points to a brand's logo so mailbox providers can display it next to authenticated messages. It depends on DMARC enforcement and, at Gmail and Apple, on a Verified Mark Certificate.
Checkers and validators#
Free lookup tools confirm that records resolve and are syntactically valid. Primary Deliverability runs SPF, DKIM, DMARC, and BIMI checks in one report and flags alignment problems.
Provider dashboards#
Google Postmaster Tools and Microsoft SNDS are free and authoritative for their networks. Register every sending domain and IP.
Report analyzers and monitoring#
DMARC aggregate reports are XML and unreadable by hand; an analyzer turns them into a per-source view. Monitoring services alert on reputation drops, blocklistings, and record changes.
Sending platforms#
Your ESP or outreach tool should expose authentication setup, bounce and complaint handling, and per-mailbox limits. For AI-drafted sequences with reply detection, Mailflow in MailMaid Engine handles the sending side.
How to choose#
- Start with the free provider dashboards and a checker.
- Add a DMARC analyzer once you have more than two sending sources.
- Add monitoring when email is revenue-critical.
- Choose sending platforms by their deliverability controls, not template libraries.
Frequently asked questions#
Does BIMI work without a VMC?
Yahoo and Fastmail display BIMI logos with DMARC enforcement alone. Gmail and Apple require a VMC or CMC.
What image format does BIMI require?
SVG Tiny 1.2 Portable/Secure. No PNG, JPG, or standard SVG.
Does BIMI improve deliverability?
Not directly. Its prerequisite, DMARC enforcement, does. The logo mainly lifts engagement and trust.