Related Clues:
- It might go through a filter
- Spam source
- Google or Yahoo! service
- Notes that whoosh
- Paperless missive
- It might be filtered
- Computer communication
- Letter that requires no postage
- PDA communique
- Something sent with a click
- PC-to-PC correspondence
- PC letter
- Spam container
- Urban-legend spreader
- Forwarded item