Answer:
The link contained in the email redirects you to a different site
Step-by-step explanation:
This is not a red flag in the sense that, the ability of the link attached to the e-mail to re-direct you to another different site shows that it might be a phising message.
It is left for the person to re-verify and decide if to go ahead to download it or not after it opens on a new site on the internet.