Related Clues:

• Yahoo offering
• Letters that can't be found at the post office
• Catch some rays?
• It's sent with a click
• ''Cut bait'' alternative
• Quick correspondence
• Message by modem
• Potential virus carrier
• Look for, as compliments
• Online letter
• Letters that lack stamps
• Cyberspace epistle
• USPS alternative
• It may arrive with attachments
• Net gains for the fleet?