Related Clues:
- Some modern ads
- Letters that can't be found at the post office
- Cyber junk
- Flood with offers, say
- It's sent with a click
- Quick correspondence
- Pesky e-mails
- Cyber junkmail
- Cyber-nuisance
- Message by modem
- Canned meat product
- Potential virus carrier
- Online letter
- Certain inbox filler
- Letters that lack stamps