Can eMail ID be spoofed?
The eMail ID solution couples our advanced technologies with authentication techniques such as Yahoo!’s Domain Keys and Microsoft’s Sender ID to confirm the source of an email, and will support Domain Keys Identified Mail (DKIM), which is a joint effort between Cisco and Yahoo!, as it is adopted in the industry. This combined solution makes it very difficult for bad guys to spoof the identity of emails with a Truemark icon.
