Outlook embedded images loading only partially

Question

Hey,

We are experiencing embedded images in Emails are not loading correctly.

This happens in the new Outlook, in the Web Browser, it also happens on mobile Outlook.

It does not happen always, sometimes it works if you reload, sometimes not.

Please advise us how to reshape our email signature to solve this problem.

Cheers,

Frederik

Answer 1

Hello Frederik**,**

Good day! Thank you for reaching out to Microsoft community.

As per your description, it seems like that you are experiencing an issue where embedded images in emails do not load correctly. This happens in the new Outlook, Outlook Web Browser, and Outlook Mobile. The issue occurs inconsistently and sometimes images load properly after reloading, sometimes they don’t. [correct me if I am wrong].

Additionally, you would like guidance on how to modify your email signature to prevent this issue.

For the guidelines for each platform on how you can create/ modify email signature you may follow this article: Create and add an email signature in Outlook - Microsoft Support.

Meanwhile, you may also follow bellow initial steps to see the outcome and root out the scenario:

Sometimes, when using your Microsoft 365 Outlook on the web (OWA), you might experience a problem when trying to set an email signature for your account. When going through email settings, under Layout menu, the Signature button might be missing. This makes it impossible for users to make any changes to their Microsoft 365 email signatures. The most probable cause is OWA policy blocking this feature. Here is how to fix it:

1. Access your Exchange admin center **** and go to Roles > Outlook web app policies. Choose the policy which is in action (OwaMailboxPolicy-Default in this example) and edit it.
2. In the Features section, click Manage features.
3. Under the User experience section, select the Email signature checkbox.
   

Note:

• This feature can be used the other way round in case there is an email signature/disclaimer added through mail flow rules or a third-party tool, and you want to block user-made signatures.
• If an email signature is added prior to blocking this feature, users will still be able to use it. It can even be added automatically if such an option has been chosen.
• OWA policies, as expected, are not applied to users who access their mailboxes in Outlook.

Some issue might occur if you access your Microsoft 365 email account in Outlook. If you cannot change or add a new email signature, this is most likely caused by a certain value entered into Registry. It has nothing to do with Microsoft 365 Administration, it is entirely dependent on Microsoft Windows’ functionalities. In order to repair the issue, follow those simple steps:

Important:

• Playing with the Registry might prove to be a bad idea if you haven’t done it before. Be sure to always create a registry backup before you start working on it. This can be done by clicking File > Export… and choosing a target location for your backup.
• Additionally, there can be value NewSignature and Reply_Signature with value type REG_SZ and value data set to name of the signature which is to be added automatically. Those Registry entries should also block changing signatures.

1. On your keyboard, hold the Windows icon and press R.
2. Type regedit and press Enter.
3. 
4. This will open the Registry editor. In the folder tree on the left, follow the path: HKEY_Current_User > Software > Microsoft > Office > X > Common > MailSettings
5. If there is a value named DisableSignatures and is set to 1, modify it so that it is set to 0.
6. 

There is a similar known issue: Signatures are not syncing between Outlook Desktop and Outlook Web App - Microsoft Support.

If you are using the latest version of the outlook which is mentioned in this article above, then you do not have to follow the instruction below:

Account data related to Cloud Settings is cached under the Settings key. You can try working around the issue by renaming the Settings key. Support has found this step to work in some recent cases. 

1. Open Regedit.
2. In Regedit, navigate to path.
   Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Settings
3. In Regedit, right-click the Settings key, select Rename, then rename the Settings key to Settings_old.
4. Restart Outlook.

Due to an older issue that has since been fixed, account-related data may be incorrectly cached within that registry value. The fix did not retroactively fix cases of this so it's possible accounts five years or older might see it. The bug would cause any newly created signature to fail to sync to the cloud. After the (failed) sync, Outlook checks to see if the signatures that we have on the PC match the list of signatures in the roaming_signature_list. Because the new signature does not appear in the list shortly after a sync up, Outlook deletes it.

Please follow these steps and let me know the outcome. If the issue persists after completing the above, feel free to reach out, and we can further investigate the problem together.

Thanks for choosing the MS community.

Looking forward to your response and have a great day ahead!!

Sincerely

S M Nazmun Nur | Microsoft Community Moderator

Answer 2

What you describe is changing the email signature.

However, we know that the picture is in the signature, because reloading can sometimes fix the issue.

This means: The problem is not related to email signatures being configured incorrectly. It is a problem happening on our customers email clients (as well as our internal email clients, of course).

But we can't change our customers' email client settings.

I'm asking for a way to send an email, with embedded images, which would load correctly an ANY common outlook client.

Answer 3

Hello Frederik Schaaf,

Thank you for your response.

There shouldn't be a problem for any outlook client users for getting the email signature. If they are not receiving the signature but after few loadings they can, that means it's a synchronization issue.

Since these basic methods are not working for your scenario, I will request to raise a service request with your contact information so that a support engineer can engage and help you directly on a remote session.

As a community moderator, we do not have sufficient permissions and resources to conduct research directly. We recommend that you contact your Microsoft 365 administrator and follow the steps in this article:

• To do that, if you have admin access, go to "Microsoft 365 admin center" or please ask the global administrator.
• Please follow this article: Get support - Microsoft 365 admin | Microsoft Learn.
• On right bottom corner click on "Help & support" after that choose the "contact support".
• 
• Fill out the required information in the form, including a description of the issue you are experiencing.
• Click on the "Create" button to submit your request. Which will give you a ticket number.
• Once your request is submitted, a support engineer will be assigned to your case and will contact you to provide assistance.

You can also share the ticket number with us if you want. We will also monitor the progress from our end.

I hope this helps. Let me know if you have any further questions or concerns.

Thanks for choosing the MS community and have a great day ahead!!

Sincerely

S M Nazmun Nur | Microsoft Community Moderator