To ensure proper display in Outlook, it is recommended that the images used in notifications do not exceed 650 pixels in width.
Size Recommendation
Outlook (especially in its desktop version) uses a rendering engine that can limit how images are displayed.
For this reason, it is recommended that:
The width of images be up to 650 pixels
Do not use wider images, as they may appear cropped or misaligned
Reason for the behavior
The Outlook email client has limitations in interpreting HTML and visual styles, which can cause:
Overflowing images
Alignment issues
Inconsistent display across different devices
Maintaining an appropriate width helps ensure uniform display.
Considerations
This behavior depends on the email client, not the platform
It may vary depending on the version of Outlook used
It mainly affects notifications sent by email
💡 Best Practices
Use images of up to 650 px wide
Validate notifications in Outlook before sending them en masse
Avoid complex designs or overly large images