⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

Images like the logo are not displayed in the correct size when using the Outlook Desktop (all versions from 2013 to the latest 2021 are affected).

This results in you having to downscale the logo-image of your instance, in order for it not to fill the whole screen when opening mails. You can't upload a image to small, since it would look pixelated on some places in the GUI otherwise, so the logo is always too big in any email.

I suppose that many organizations are affected by this, since Outlook is a widespread virus.

Steps to reproduce

1. Upload a high resolution logo.
2. Trigger anything that sends an email.
3. Open the email with any Outlook client.
4. Look at the unresponsive monstrosity of a logo:
   

Expected behavior

I would expect it to look sleek and elegant exactly on any other modern mail client or webmail client:

Installation method

Manual installation

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.0

Web server

Nginx

Database engine version

MariaDB