Problem with MSFT Word and Zimbra e-mail?

I created a newsletter with lots of text boxes and pictures in Microsoft Word. I then sent it out to my boss and a few others using Zimbra e-mail, and it appeared for them just fine. But when I sent it to a larger group, the two pages of the e-mail appeared on top of one another, and could not be read. I now cannot get rid of this image, and have been unable to send the newsletter to those who need the information.

This could be a formatting issue in Word, in which case I don't know enough to figure it out. It could also be an issue with the Zimbra e-mail, I suppose.

I'll take just about any suggestion, as another newsletter is due out at the end of next week and I'm a little worried about this.

Blessings,

Kate