Gene -
Here's what the non-aliased link looks like to those of us who are not logged into your email:
https://apis.mail.yahoo.com/ws/v3/ma...b-ed03bd013300
It looks like you're simply trying to upload the email itself, instead of removing the content you want to share to another location, like your desktop, and then uploading. As said previously, if it's a url, then use the little globe looking button. If it's an actual file (text, picture, video, etc.), then just use the paper clip.
