Note:

Recently an email account of an associate was "spoof'ed" and started to send emails not from our email server, but using a real email address.
This account has been locked/restricted on our end and is not sending any emails - any emails recieved in error come from another email server spoofing the account.

Do not open any attachments from senders that you don't know and never open ".zip" files attachments unless you know the content.