is there a possibility to disable Youtube preview images when a youtube link is posted?
Because with the preview the browser does already load an image from an external server which is not really EU GDPR compliant.
For example a video link like the link below which automatically does create a preview image.
Or is the image stored locally inside the Mattermost server when the link is posted and then accessed from there?
how it looks like in Mattermost:
Hey @GuidoD - indeed there is!
If you go to System Console > Customization > Posts, there is a setting for enabling/disabling website link previews. If you turn that setting off, it’ll disable all link previews, including YouTube previews.
https://docs.mattermost.com/administration/config-settings.html#enable-link-previews
Note: Make sure you have Mattermost 5.4 or later installed. Earlier versions had a bug where YouTube previews were not affected by this setting.
Let me know if you have any questions 