"Michael Price" wrote in message
...
I don't think that is it at all. I am having the same problem on my wife's
computer. I log into her machine and configure Outlook for myself and all
works fine. For her every attachment is corrupted to the receiver. They
look fine on her machine.

I have tried deleting her outlook profile including the OST files to no
avail. It is extremely frustrating.

Other mail clients work fine.

But logging in to another machine and deleting data files doesn't answer any
of the questions that Kathleen asked you! The default setup on ANY
installation of outlook, whether on your machine or some other, is to send
email in Rich text Format. Non-Outlook mail clients cannot read RTF email!
You don't change that setting by deleting data files or logging on to
another machine with the same default settings!
Again, if BOTH your machines are using Office 2007, the DEFAULT file types
CANNOT BE READ NATIVELY by any other version of Office! Again that behaviour
is NOT changed by deleting Outlook data files or logging on to the other
machine!

So, are BOTH instances of Outlook set up to send email in Rich text Format
(Tools-Options-Mail Format) AND/OR, are you both using Office 2007 and
sending to non-Office 2007 users?