Authentic Crayola e-mail communications have either @crayola.chtah.com or @crayola.com in the e-mail address. If you are sent a Crayola electronic card, the message is sent from your friend's e-mail address, not from the Crayola.com web site. Messages sent from Crayola.com are also 100% virus free. Many e-mail viruses on the Internet will mask themselves with legitimate e-mail addresses in order to trick recipients into launching their attachments. Always approach unexpected messages with attachments from unknown recipients with caution, and we encourage you to scan your attachments for viruses whenever possible.