How to forward email: By default, regular users do not have the option to forward infected emails. Users can still have these options if the admin checks the below-highlighted boxes to allow users to forward infected emails.
Once the option is given to you by your system admin, login to the archiver, click on "Home" at the upper right corner and click your Inbox, open that email that you want to forward and click the forward option as indicated in the below screenshot.
Enter the email address of the recipient