[imp] preview of attached files in imp

[francis picabia]

So you can understand better how the user sees this, I include
the way it is reported to our helpdesk...


I have tried several times to place a short attachment onto an e-mail
that I am trying to send. Each time a message comes back to me
indicating that the attachment is uploaded and a second one is received
that the is a problem with the attachment

It is breaking their confidence that the file is attached to the email.