Policy

Do not compress the inlined images inserted in Outlook

This policy setting allows you to disable compression on inlined images in Outlook. If you enable this policy setting, Outlook won't compress inlined images in the message. If you disable or don't configure this policy setting, inlined images would be compressed. Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for enterprise.

Policy
PackMicrosoft Office
CategoryMicrosoft Word 2016 / Word Options / Advanced / E-mail Options
Policy ID854b8536765b
Internal nameL_DoNotCompressInlinedImagesInOutlook

Registry

Copy registry mappings

HKCU\software\policies\microsoft\office\16.0\common\mailsettings\outlookdonotcompressimages (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\common\mailsettings\outlookdonotcompressimages (disabled) = 0

Policy notes

This policy setting allows you to disable compression on inlined images in Outlook. If you enable this policy setting, Outlook won't compress inlined images in the message. If you disable or don't configure this policy setting, inlined images would be compressed. Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for enterprise.

Related policies

Allow Advanced Typography features for OutlookRely on CSS for font formattingSpecify default quality of compression done on inlined images inserted in Outlook