HTML pictures not loading in Outlook Desktop App

Question

Hi there,

I have a question regarding Outlook and thank you for any advice.
Since we have Windows 11 deployed, our Outlook Desktop App Version 2409 (Build 18025.20140) does not download html pictures anymore. Even after clicking on "download" it only displays the pictures with a red cross.

What we have tried so far:

• BlockHTTPImages under HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Security does not exist.
• Under File tab > Options > Trust Center > Trust Center Settings > Trust Center Settings. I have disabled the 'Don't download pictures automatically in HTML e-mail messages or RSS items checkbox.​​​​​​'

In OWA it works fine, the pictures are displayed.

We need to use the classic Outlook App because the Outlook (new) seems to only support Exchange Online, while we still using Exchange on-prem.

Does anyone have an idea how to proceed or what we could try?

Thankful for any input.

Answer 1

Hi @Diellza Marmullaku

Welcome to our forum!

Glad to hear this issue has been resolved and thanks for the sharing! 

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However, due to forum policy, the question author now is not able to accept their own answers.  

So, I have written a brief summary of the solution this issue. Please feel free to ACCEPT it as the Answer, which would benefit others who also have similar issues in the forum.  

Issue: 

 HTML pictures not loading in Outlook Desktop App

Solution: 

Exit Outlook>Control Pane>Internet Options, select the Advanced tab>Under the Security heading, disable the Do not save encrypted pages to disk option>OK>Start Outlook.

More information: HTTPS linked images in HTML emails display the red X - Outlook | Microsoft Learn 

Answer 2

https://learn.microsoft.com/en-us/outlook/troubleshoot/message-body/https-linked-images-in-html-emails-show-red-x?source=recommendations
Exit Outlook

1. Open Internet Options, and then select the Advanced tab.
2. Under the Security heading, disable the Do not save encrypted pages to disk option.
3. Select OK.
4. Start Outlook.

These instructions solved my issue!
Thanks Microsoft.