I don't know if it's phishing but oldfogy and I have both received e-mails purporting to be from UPS saying they were unable to deliver a postal package to us, with a tracking number and an attachment. As the reply address was tequila com I smelled bad phish. I don't know what happens if you open the attachment, which claims to be a copy invoice to print, but it can't be good.
Edit:
I have removed the link that you posted so that no one tries it out of curiosity
dave