| Clue | Source | Date |
|---|---|---|
| Sources of many unwelcome messages online | New York Times | 10 Jan 2025 |
| Email-sending programs: 2 wds. | Commuter | 06 Jul 2024 |
| Captcha targets | New York Times | 14 Mar 2024 |
| Inbox-filling programs | Commuter | 07 Feb 2024 |
| Programs sending junk mail | The Washington Post Sunday | 19 Sep 2021 |
| Automated mass mailers | Universal | 29 Aug 2019 |
| Junk dealers? | New York Times | 20 Jul 2019 |
| Junk dealers? | ||
| Automated mass mailers | ||
| Mass junk mailers | ||
| Automated in-box cloggers | ||
| Unwanted forum visitors | ||
| Automated address collectors |