Related Clues:

• Put in the mail
• In-box clutter, perhaps
• Computer in-box annoyance
• It's often deleted
• On the way, in a way
• Relayed
• Cyber-junk
• Dropped in the mailbox
• Net receipts?
• Posted, as a letter
• War fare?
• Foxhole entree
• Put on cloud nine
• Caused a swoon
• Unsolicited e-mail