Images not showing up in any email

[SSayed2]

I have been having issues with images not showing up in any emails. We have double checked the DNS and there is nothing wrong with it. I have uploaded all images through the file editor and ensured they are not too big of a size and also that they have been made public. 

When I submitted a hubspot ticket they said it had something to do with the DNS, but that has been triple checked and there is nothing wrong. Please help!

[Balaji_Mavlers1]

Hi @SSayed2 

1. Confirm Image URL Accessibility
Even if images are marked public, can they be accessed directly via the browser?
Open the image URL in an incognito/private browser window.


If it returns a 403 or 404 error, the issue is likely file permissions or image hosting restrictions.


2. Check Image URLs in the Email
HubSpot sometimes references images using relative paths or tracking parameters. Make sure:
URLs are absolute (https://...), not relative.


Hosted on a secure (HTTPS) domain.


Image URLs don't redirect or expire.


3. CDN/Cache Issues
If you're using a CDN or proxy (e.g., Cloudflare), it might be interfering.
Try purging cache.


Temporarily bypass CDN and test email.


Disable any "hotlink protection" that blocks external image loads.


4. Email Client Blocking
Some email clients (like Outlook, Gmail, Apple Mail) block images:
Check the email in multiple email clients.


Test with images hosted outside HubSpot, like a trusted public S3 bucket or Imgur, to isolate the issue.


5. HubSpot File Tool Hosting
If using HubSpot’s file manager:
Files must be hosted on a public HubSpot domain.


Right-click on the image in File Manager > Copy URL, and test it by running it on a browser.


6. Test in HubSpot Preview & Live Send
Preview the email in HubSpot’s email preview tool (both desktop and mobile views).


Send a test email to yourself and others. Compare how it renders.


7. Check for Email Security Software
Corporate email security (like Proofpoint, Mimecast) may strip out images:
Ask if recipients are seeing broken images.


Send to a Gmail or Outlook personal email to compare.

[CarolinaDeMares · Accepted solution]

Hi @SSayed2 - I understand how frustrating this is, I'll suggest the following steps: 

If you're testing via preview or test email, try this instead:

• Send a real version of the email to your inbox.

• Use your email client's “view original” or “view source” to inspect if:

  • The <img src> tags contain working links.

  • The src URLs lead to actual files (try opening in browser).
    
    Hope this helps! 

Carolina De Mares

Brandgang

Goirkekanaaldijk 14

5046 AT Tilburg