Macos – Where is the “On My Computer” folder on the Mac, and where is local folder for emails

I'm not in front of my mac to try at the moment, but your description sounds a lot like the way Apple's mail.app handles image attachments. They are (or at least they can be if you choose to) rendered in-line, in the body of the email text.

I don't know what's happening in the background there (html, code, etc.), but have you tried composing your message in mail.app and copy/pasting into Outlook, or perhaps use mail.app to send yourself a properly rendered message and view source, or something to that effect... to then import the composed message, images in-line, into Outlook?

Mac OS X is unix bases so you "should"(i will check then when i get home and have access to a mac).

1. Open the terminal and make the directory that you want to mount the drive to (for example sudo mkdir /MyUsbDrive(you need to be root)).

2. Find out what the drive name your usb drive is so use sudo diskutil list to find the drive name(should be something like /dev/disk1s2(the first number is the number of the physical drive the second number is the partition number)).

3. use sudo mount -t NTFS (type of partition you want to mount) /dev/disk1S2(what the diskutil list shows) /MyUsbDrive(where you want to mount it).