Getting 'unspecified error' sending email with embedded image?

[Judy]

I'm using an email newsletter template in Word, and including image files. I
cut and paste the final word version into Outlook, and send.

When I format the images to appear in front of the text, and try to send as
an email, I get a message 'unspecified error' and the email won't send. If I
format the images behind the text, the email can be sent, but the images do
not appear in the received email.

Any suggestions?
Thanks a lot,
Judy