How do I update or change a BIMI logo for Yahoo and what are the size recommendations?
Summary
What email marketers say11Marketer opinions
Email marketer from EmailDrips states the BIMI logo is designed to scale, so the size isn't the issue - it's the clarity. The logo needs to look crisp and clean even when it's shrunk to a small size in the inbox.
Email marketer from Mailosaur recommends testing tools to ensure the logo appears correctly in different email clients and contexts after you update it.
Email marketer from EmailGeeks shares that the logo should be a square aspect ratio and should render well when it's displayed in a circle. They also specify the file must be an SVG.
Email marketer from Reddit explains that Yahoo uses its own logic to add logos, and once BIMI is running, users may need to ask Yahoo to stop using their image and start using the BIMI one.
Email marketer from Email Geeks shares that Yahoo may add logos based on their own logic/decisions. Once BIMI is running (after enforcing DMARC), you may need to ask Yahoo to stop using their image and start using yours.
Email marketer from Validity shares that the VMC validates that the logo is registered to you so you have the rights to use it. You will need a VMC to display your logo on supporting email clients.
Email marketer from Mailjet shares that if you need to update your BIMI logo after the initial setup, simply replace the SVG file on your server with the new version. The updated logo should propagate through the email ecosystem relatively quickly.
Email marketer from Email Marketing Forum shares you must have a DMARC policy set to either quarantine or reject for your domain before BIMI will work.
Email marketer from SocketLabs explains that because BIMI uses SVG, it will scale to fit its container, so the design should be simple and easily recognizable no matter the size.
Email marketer from Email Geeks shares it should also look good cropped to a 400-pixel-diameter circle
Email marketer from ZeroBounce shares you need to ensure DMARC is set to 'p=quarantine' or 'p=reject' to be fully compliant with BIMI standards before implementing the logo.
What the experts say5Expert opinions
Expert from Word to the Wise explains BIMI requires a DMARC policy at p=quarantine or p=reject, stating that without this level of enforcement, the BIMI logo will not display.
Expert from Email Geeks explains the domain doesn't qualify because DMARC is set to p=none and needs to be enforced. Also, there is no BIMI policy published for the organization domain.
Expert from Email Geeks explains that to update a BIMI logo, you need to update the logo file and the URL of where it's hosted. Yahoo should update it in a day or two.
Expert from Email Geeks recommends 400x400 for BIMI logo image size. It should be a true vector and not a png in an svg wrapper.
Expert from Word to the Wise explains common issues with BIMI deployments, including problems with VMC validation and SVG formatting, advising users to check these elements carefully when troubleshooting logo display issues.
What the documentation says4Technical articles
Documentation from BIMI Group explains that logos are typically displayed at 96x96 pixels. So it should be designed with legibility in mind at that size.
Documentation from Entrust explains the SVG needs to be in the 'SVG Tiny Portable/Secure' profile. It should be a vector graphic and not a raster image embedded in an SVG container.
Documentation from dmarcian explains that to change your BIMI record, you update the DNS TXT record where the BIMI record is stored. Update the 'a' field value to point to the new location of your SVG logo.
Documentation from VMC Group Website explains that a VMC (Verified Mark Certificate) is required. The logo must be a registered trademark, and the image must be in SVG format.