Yes, you can safely delete the __MACOSX folder from your server. This folder is automatically created by macOS when zipping files and contains metadata related to macOS's file system, which is not necessary on other systems like your server.
To delete it, you can use the following command if you're accessing your server via SSH:
rm -rf __MACOSX
This will remove the folder and its contents from your server. It won't affect your website or any other files since the folder is only used by macOS.
