Is it in all email or just that 1? Where is the email from and what is it about. That's M365 and not the free version of Outlook / Hotmail right? Looks like normal M365 blocking external images for security. No issues for me. see screenshot What OS? What version of Firefox?

What is this in English? see screenshot

Hi, ?Jon!

Thank You for Your wanting to help! 1. It's about all mails. (See attachments) 2. That email was a login allert in Russian. 3. It is a free version of Outlook. 4. Windows 10. 5. Mozilla Firefox 133.03.3 (64-bit). 6. Translation from Russian: "If you have problems displaying this message, click here to view it in your web browser."