Outlook Classic (Windows) crops images and fills cropped area with black when forwarding emails

Question

Outlook Classic (Windows) crops images and fills cropped area with black when forwarding emails

Aarti Pawar 0

Hello,

I am facing a consistent rendering issue in Outlook Classic on Windows when forwarding HTML emails.

The original email displays correctly in Outlook Desktop, Outlook Web, and Outlook Mobile

When the same email is forwarded from Outlook Classic (Windows desktop):

Images get partially cropped

  The cropped portion is replaced with a **black area**
  
     Borders and layout dimensions remain intact

Forwarding the same email from Outlook Mobile does not show this issue

Important details

Images are flat images (issue occurs with both PNG and JPG)
Images are already flattened in Adobe
Reducing file size or changing resolution does not help
The issue occurs only after forwarding, not in the original received email
The cropped area consistently turns black, not transparent or white

Question:

Is this a known limitation or bug related to Outlook Classic?
Why does Outlook Desktop crop images and fill the overflow area with black, instead of reflowing or scaling the image?
Are there any documented best practices or fixes to prevent this behaviour when emails are forwarded inline from Outlook Classic?

1 answer

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Answer 1

Kha-N 8,255 Microsoft External Staff Moderator

Hi @aartipawar,

Welcome to Microsoft Q&A, and thank you for reaching out.

Based on your description, could you share a screenshot of how it appears on your side through private message sent to you? I tested this on my end and wasn’t able to reproduce the black fills you mentioned.

User's image

From my research, while I couldn’t find other threads reporting the same issue. Microsoft does note that when an email is forwarded, the formatting can sometimes break depending on the email client. Forwarding may remove certain HTML elements or add technical blocks to the email’s HTML, which can change how the message appears or even affect its functionality.

Because of this, Microsoft recommends keeping email designs as simple as possible:
User's image

You can find more details in this Microsoft documentation here.

Looking forward to your response.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Kha-N 8,255 Reputation points Microsoft External Staff Moderator

2026-02-11T08:55:59.79+00:00

Hi @aartipawar,

Thank you very much for your patience.

After doing additional research and testing on my end, I’m unfortunately unable to reproduce the behavior you described.

I also looked further into this but couldn’t find any similar reports from other users.

With that in mind, could you confirm whether this issue also occurs in Classic Outlook on another device? If it only happens on a specific machine or for a specific user, it’s likely related to the local Outlook configuration rather than a product‑wide issue.

As a first step, please try starting Outlook in Safe Mode, which disables all add‑ins. If forwarding works correctly, an add‑in is likely causing the issue and should be reviewed or disabled. You can start Safe Mode by closing Outlook, pressing Windows + R, and typing outlook.exe /safe.

Another option is to create a new Outlook profile, as a corrupted profile can affect forwarding. You can do this by closing Outlook, pressing Windows + R, typing outlook.exe /profiles, and creating a new profile. Set it as the default before restarting Outlook to ensure the new profile is running when Outlook is opened.

If the problem still persists after trying the above, I suggest reaching out to Microsoft Support through Admin Center for deeper investigation. Note that you would need to have admin access for this.

As a forum moderator, I don’t have access to your environment, and my testing is limited to a general setup. So I can only be able to assist based on available documentation and research. The support team has specialized tools to diagnose your issue in more detail, which can help you further.

Thank you for your understanding.

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Outlook Classic (Windows) crops images and fills cropped area with black when forwarding emails

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