Brand Indicators for Message Identification (BIMI) is an emerging email standard that allows brands to display their registered logo next to their authenticated email messages in a recipient's inbox. While it doesn't directly impact email deliverability in terms of bypassing spam filters, it significantly enhances brand recognition, trust, and potentially engagement. Implementing BIMI requires rigorous adherence to email authentication protocols, particularly DMARC, and often involves obtaining a Verified Mark Certificate (VMC) for logo display in major inboxes like Gmail and Apple Mail.
Key findings
Authentication reward: BIMI is widely considered a visual reward for properly implementing strong email authentication, especially a strict DMARC policy.
Brand visibility: Its primary benefit is to increase brand visibility and recognition by displaying a verified logo directly in the inbox.
Engagement potential: Displaying a recognizable logo can draw recipient attention and theoretically lead to increased engagement (e.g., higher open and click-through rates).
No direct deliverability boost: BIMI itself does not directly improve email deliverability or prevent emails from landing in spam folders or on a blacklist (also known as a blocklist). Instead, it relies on the strong authentication provided by DMARC, SPF, and DKIM to signal legitimacy.
Anti-phishing measure: By making it easier to identify legitimate senders, BIMI can help reduce the risk of phishing attacks and brand impersonation.
Key considerations
DMARC enforcement: A strict DMARC policy (p=quarantine or p=reject) is a prerequisite for BIMI implementation. This is often the most challenging part of the process. For more details on setup, see how to set up DMARC for BIMI.
Verified Mark Certificate (VMC): For major email providers like Gmail and Apple Mail, a VMC is required to display your logo. VMCs are issued by specific certificate authorities and come with an annual cost (e.g., around $1299/year).
Trademarked logo: Your brand logo must be trademarked to obtain a VMC. The trademarking process itself can be lengthy and complex if not already done.
Implementation process: The entire process, from DMARC enforcement to VMC acquisition and DNS record setup, can be extended and complex, as documented by sources like Stripo's experience.
ROI justification: While beneficial for branding, the direct return on investment (ROI) for the cost of a VMC and implementation efforts should be evaluated against perceived gains in brand trust and engagement.
What email marketers say
Email marketers view BIMI as a valuable tool for enhancing brand presence in the inbox, even if its direct impact on deliverability is debated. They often see it as a significant step beyond basic email authentication, offering tangible benefits for recipient trust and engagement. However, the costs and complexity, particularly the requirement for a trademarked logo and a Verified Mark Certificate, are frequently raised as practical hurdles.
Key opinions
Brand visibility is key: Marketers universally agree that getting their logo in front of customers is always beneficial for brand recognition.
Engagement driver: The visible logo is expected to draw attention and increase engagement, leading to better open and click-through rates.
Complementary to DMARC: Many perceive BIMI as the payoff or “carrot” for successfully implementing a robust DMARC policy.
Security perception: While not a direct security measure, the verified logo can enhance user trust and make it harder for phishers to spoof a brand.
Indirect deliverability: Some marketers believe that the improved brand trust and engagement fostered by BIMI can indirectly lead to better deliverability outcomes, although this is more a consequence of the underlying authentication rather than BIMI itself.
Key considerations
Cost of VMC: The annual cost of a Verified Mark Certificate (VMC) is a significant investment that needs to be justified by the perceived branding benefits. For more on costs, see BIMI implementation costs.
Trademark requirement: A key hurdle is the necessity of having a legally trademarked logo, a process that can be time-consuming if not already in place.
DMARC prerequisite: Successfully achieving DMARC enforcement at a strict policy (quarantine or reject) is a prerequisite that requires significant effort and time.
Internal buy-in: Securing internal buy-in for the investment in BIMI can be challenging, though some marketers note that the ability to leverage marketing budgets for DMARC projects can be an incentive for IT departments.
Complex process: The overall implementation process, including SVG file creation and DNS record publication, is recognized as extended and involved.
Marketer view
A marketer from Email Geeks states that BIMI serves as a visual reward for successfully implementing DMARC. It allows brands to display their trademarked logo, enhancing visibility.
01 Dec 2023 - Email Geeks
Marketer view
An email marketer from SendLayer explains that BIMI is an email specification designed to place a company's logo directly into customer inboxes, offering an immediate visual cue for brand recognition. This simple addition can significantly boost a brand's presence in a cluttered inbox.
28 May 2024 - SendLayer
What the experts say
Email deliverability experts highlight that BIMI's role is not to directly improve inbox placement but rather to build upon the foundation of strong email authentication provided by DMARC, SPF, and DKIM. They emphasize the importance of robust security protocols as the primary drivers of deliverability, with BIMI serving as a visual trust signal. While the costs and processes can be significant, experts recognize the long-term benefits for brand protection and user trust.
Key opinions
Authentication is foundational: Experts stress that proper email authentication (SPF, DKIM, DMARC) is what truly gives senders the “deliverability they deserve,” with BIMI being a subsequent branding layer.
Indirect deliverability impact: While not directly influencing spam filtering, the enhanced trust and recognition from a visible logo can lead to better user engagement, which in turn can positively affect sender reputation and thus indirectly aid deliverability. This concept is often explored in discussions around BIMI's impact on engagement.
Anti-spoofing mechanism: BIMI strengthens the anti-spoofing efforts by providing a clear visual cue for verified senders, making it harder for fraudulent emails to deceive recipients.
Brand trust: The verified logo signifies a higher level of trust to the recipient, which is crucial in an era of increasing email fraud.
Long-term value: Despite the initial investment, experts see BIMI as a valuable long-term asset for brand integrity and enhanced user experience.
Key considerations
DMARC enforcement is non-negotiable: Achieving DMARC at an enforced policy (quarantine or reject) is a strict requirement and typically the most complex part of the journey to BIMI. Without it, BIMI cannot be implemented.
VMC process complexity: Obtaining a Verified Mark Certificate is more than just a financial outlay; it involves a detailed validation process by accredited certificate authorities, as also discussed in BIMI provider support requirements.
Trademark validation: The requirement for a registered trademark for the logo adds another layer of complexity and potential delay to the overall implementation timeline.
Limited direct deliverability: While beneficial, it's crucial for organizations to understand that BIMI will not fix underlying deliverability issues such as poor sender reputation or landing on a blocklist. Its value is predominantly in branding and trust, not direct inbox placement.
Mailbox provider support: BIMI display is dependent on mailbox provider support, meaning not all recipients will see the logo even with full implementation.
Expert view
An expert from Email Geeks reiterates that BIMI does not directly improve email deliverability, emphasizing that robust authentication is the actual driver of inbox placement. They clarify that BIMI is a consequence of good authentication, not a cause of deliverability improvement.
01 Dec 2023 - Email Geeks
Expert view
An expert from SpamResource suggests that while BIMI enhances brand visibility and trust, its impact on deliverability is primarily indirect, by fostering positive user engagement which, over time, can signal good sender reputation to mailbox providers.
20 Feb 2024 - SpamResource
What the documentation says
Official documentation and technical specifications position BIMI as a standard that leverages existing email authentication protocols to provide a visual indicator of brand identity. It emphasizes the strict prerequisites, particularly DMARC enforcement, and outlines the technical requirements for logo display. Documentation consistently highlights BIMI's role in building trust and combating fraudulent email, rather than directly influencing email deliverability.
Key findings
Authentication dependency: BIMI builds directly on the foundation of strong email authentication standards like SPF, DKIM, and especially DMARC, requiring a DMARC policy of p=quarantine or p=reject.
Logo display mechanism: A BIMI record (a DNS TXT record) instructs receiving mail servers where to locate the official SVG file for the brand's logo.
Verified Mark Certificate (VMC): For display in high-profile inboxes (like Gmail and Apple Mail), a VMC is required. This certificate cryptographically links the brand's trademarked logo to its authenticated email domain, providing enhanced assurance.
Brand trust and anti-spoofing: Documentation consistently frames BIMI as a tool to increase recipient trust and help combat email fraud and impersonation by visually verifying legitimate senders.
Technical specifications: Specific requirements exist for the SVG logo file, including its format (SVG Tiny 1.2), size, and secure hosting (HTTPS).
Key considerations
Prerequisites: The explicit requirement for DMARC enforcement (p=quarantine or p=reject) means BIMI implementation cannot proceed without robust email authentication already in place. More on BIMI requirements and steps.
Trademarked logo: A key component of VMC issuance is the legal trademark of the brand's logo. Without this, a VMC cannot be obtained.
DNS configuration: The proper configuration of the BIMI DNS TXT record is critical for mailbox providers to locate and display the logo correctly.
Supported clients: BIMI logo display is dependent on support from individual email clients and mailbox providers, which may vary. Information about which email clients support BIMI is available.
Security vs. branding: Documentation clarifies that BIMI's primary impact is on branding and perceived security, rather than directly altering core deliverability metrics or serving as a direct spam filter bypass mechanism.
Technical article
Documentation from RFC 8605, the BIMI specification, outlines that Brand Indicators for Message Identification provides a standardized mechanism. This allows a sending organization to have its brand logo displayed in the user agent alongside authenticated email messages, enhancing visual trust.
01 Feb 2019 - RFC 8605
Technical article
Google's Gmail documentation states that to assist users in identifying legitimate senders, Gmail displays brand logos for those senders who have successfully adopted BIMI and secured a Verified Mark Certificate (VMC). This visual cue helps build user confidence.