Knowledge Base

 Troubleshooting “SVG logo file is not binary equal to the image embedded in VMC certificate” Error 

Overview 

This guide explains how to diagnose and resolve the BIMI/VMC validation error: “SVG logo file is not binary equal to the image embedded in VMC certificate.” 
This issue appears when the hosted BIMI SVG does not exactly match the SVG embedded inside the VMC certificate. 

Symptoms 

You may be experiencing this issue if you see the following: 

Cause 

This error is typically caused by even the smallest difference between your hosted SVG and the SVG embedded inside the VMC. 
Common causes include: 

Solution 

Step 1 — Extract the Embedded SVG from the VMC Certificate 

This ensures you are using the exact SVG used when the certificate was issued. 

If you have OpenSSL installed, run: 

openssl x509 -in cert-2812353108.crt -text > output.txt 
 

Search the output for: 

BIMIIndicator 
 

Copy the Base64‑encoded SVG and decode it: 

base64 -d embedded.txt > bimi-from-certificate.svg 
 

This file is the one that must be hosted for BIMI to work. 

Step 2 — Replace Your Hosted BIMI SVG with the Extracted SVG 

Upload the extracted SVG to your hosting location, e.g.: 

https://bimi.soteriasec.com/your-bimi-file.svg 
 

Keeping the same filename is fine. 

Step 3 — Re-run the BIMI Validator 

Test again using: 

You should now see a successful validation message such as: 

“SVG logo is identical to VMC embedded logo – OK.” 

 
 
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