Why do companies ask you to forward phishing emails to them as an attachment?

Question

When you get a phishing email, sometimes a company will have a specific division that deals with that concern. So they’ll ask you to forward any emails of that nature to a specific email address.

But sometimes they ask you to do so as an attachment. Why?

In: Technology

Answer 1

This also retains the message exactly as it came in, since forwarding it normally could lose a lot of metadata especially if they want to inspect it closely.