Summary
When a BIMI record is not present, Yahoo Mail's system attempts to display a sender's logo using a legacy mechanism that incorporates various data points, including sender reputation, historical data, web scraping, and proprietary algorithms. This process lacks transparency and control, often resulting in unpredictable or inaccurate logo displays. While contacting Yahoo may help with incorrect logos, the consensus is that implementing BIMI offers the most reliable way for brands to manage their logo presentation and ensure consistent brand representation. A DMARC policy of 'quarantine' or 'reject' is required for BIMI implementation.
Key findings
- Legacy System: Yahoo Mail employs a legacy system for displaying logos in the absence of a BIMI record.
- Unpredictable Display: Logo display without BIMI is often unpredictable and may show outdated or irrelevant images.
- Various Data Sources: Yahoo's system utilizes sender reputation, historical data, web scraping, and proprietary algorithms to select logos.
- Lack of Control: Senders have limited or no control over the displayed logo when BIMI is not implemented.
- BIMI Recommended: Implementing BIMI is the recommended solution for controlling logo display and ensuring accurate brand representation.
- DMARC Requirement: A DMARC policy of 'quarantine' or 'reject' is required to implement BIMI.
Key considerations
- Implement BIMI: Consider implementing BIMI to ensure consistent and controlled brand representation in Yahoo Mail.
- Contact Yahoo: If facing issues with an incorrect logo display, contacting mail-questions@yahooinc.com may be a temporary solution.
- Monitor Display: Regularly monitor the logo displayed in Yahoo Mail to ensure it aligns with your brand, particularly if not using BIMI.
- Consistent Branding: Maintain consistent branding across all email communications and website presence to potentially influence Yahoo's logo selection in the absence of BIMI.
- DMARC Policy: Ensure your domain has a DMARC policy set to 'quarantine' or 'reject' to meet the requirements for BIMI implementation.
What email marketers say
11 marketer opinions
When a BIMI record is absent, Yahoo Mail's logo display relies on a legacy system that is often unpredictable and inconsistent. This system may use cached logos, scrape logos from the sender's website, leverage sender reputation data, or display generic icons. Contacting Yahoo is an option to address incorrect logos. However, implementing BIMI is the recommended approach, requiring a DMARC policy of quarantine or reject. This ensures brands have control over the displayed logo and consistent representation.
Key opinions
- Legacy System: Yahoo uses a legacy system to display logos when BIMI is absent.
- Unpredictability: Logo display without BIMI is unpredictable and may show outdated or irrelevant images.
- Data Sources: Yahoo might use cached logos, scrape the sender's website, or leverage sender reputation data.
- BIMI Control: Implementing BIMI gives brands control over the displayed logo.
- DMARC Requirement: BIMI implementation requires a DMARC policy of quarantine or reject.
Key considerations
- Implement BIMI: Consider implementing BIMI for consistent and controlled brand representation.
- Contact Yahoo: Contact mail-questions@yahooinc.com if an incorrect logo is displayed without BIMI as a temporary solution.
- Monitor Display: Monitor Yahoo's logo display to ensure it aligns with your brand, especially if not using BIMI.
- Consistent Branding: Maintain consistent branding across all email communications to influence Yahoo's logo selection in the absence of BIMI.
- DMARC Policy: Ensure your domain has a DMARC policy set to 'quarantine' or 'reject' if you plan to implement BIMI.
Marketer view
Email marketer from Reddit mentions that Yahoo might use a cached version of a logo or a logo scraped from the sender's website. They suggest monitoring Yahoo's display and consider implementing BIMI for full control.
31 Oct 2024 - Reddit
Marketer view
Email marketer from Sender Authentication Blog explains that if no BIMI record is detected, Yahoo may attempt to pull the logo from the sender's website. Ensuring the logo is easily accessible and prominently displayed on the site can influence Yahoo's selection.
26 Jun 2022 - Sender Authentication Blog
What the experts say
2 expert opinions
When a domain lacks a BIMI record, Yahoo Mail utilizes a legacy logo display mechanism. This system relies on Yahoo's internal heuristics, which may include scraping the sender's website or leveraging historical data, leading to unpredictable results. Experts recommend implementing BIMI to gain control over logo display and contacting Yahoo directly to address issues with the legacy system.
Key opinions
- Legacy System: Yahoo uses a legacy logo display mechanism for domains lacking BIMI.
- Unpredictable Display: Without BIMI, Yahoo's logo display is unpredictable and relies on internal heuristics.
- Data Sources: Yahoo's heuristics may involve scraping the sender's website or using historical data.
- BIMI Recommended: Experts strongly recommend implementing BIMI for control over logo display.
Key considerations
- Implement BIMI: Implement BIMI to ensure consistent and controlled logo display.
- Contact Yahoo: If facing issues with the legacy system, contact Yahoo directly to address concerns.
Expert view
Expert from Email Geeks confirms that Yahoo has a legacy logo display mechanism for domains lacking BIMI and that contacting Yahoo about it was the right move.
17 Dec 2021 - Email Geeks
Expert view
Expert from Spam Resource explains that without a BIMI record, Yahoo's logo display is unpredictable and relies on Yahoo's internal heuristics, which may include scraping the sender's website or using historical data. He strongly recommends implementing BIMI for control.
26 Sep 2023 - Spam Resource
What the documentation says
4 technical articles
Without a BIMI record, Yahoo Mail uses proprietary algorithms, sender reputation data, historical data, and web scraping to attempt to display a logo based on existing brand recognition. This process is less reliable, lacks transparency, and gives senders no control over the displayed image. Implementing BIMI is recommended to ensure the correct logo is displayed.
Key findings
- Proprietary Algorithms: Yahoo relies on proprietary algorithms to display logos without BIMI.
- Data Sources: Yahoo uses sender reputation data, historical data, and web scraping.
- Lack of Control: Senders have no control over the displayed image without BIMI.
- Less Reliable: The logo display process without BIMI is less reliable.
- Importance of BIMI: Implementing BIMI is crucial for reliable branding and correct logo display.
Key considerations
- Implement BIMI: Implement BIMI to ensure reliable branding and control over logo display.
- Monitor Display: Monitor logo display in Yahoo Mail to ensure it aligns with your brand if you are not using BIMI.
Technical article
Documentation from Validity details that Yahoo might fallback to using sender reputation data or previously identified logos for senders without BIMI. It highlights the lack of control senders have in this scenario, stressing the benefit of BIMI.
1 Aug 2024 - Validity
Technical article
Documentation from Agari elaborates that Yahoo may use a combination of algorithms based on sender reputation and historical data, along with web scraping, to select logos without BIMI. This process lacks transparency and control, hence the necessity of BIMI for reliable branding.
29 Jul 2021 - Agari
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