| 2026-06-21 | Includes without others knowing, in a way |
| 2025-11-09 | Emails discreetly |
| 2025-10-05 | Surreptitiously loops in, for short |
| 2024-09-27 | Keeps informed, in a way |
| 2024-06-18 | Secretly includes, in a way |
| 2024-06-09 | List that only the sender sees |
| 2024-05-27 | Secretly loops in, as on an email |
| 2023-09-18 | Loops in surreptitiously |
| 2023-08-08 | Discreetly includes on an email |
| 2023-04-19 | Secretly loops in, in a way |
| 2022-02-26 | Includes surreptitiously, in a way |
| 2022-01-26 | Includes secretly, in a way |
| 2021-11-15 | Privately includes on an email |
| 2021-10-01 | Keeps informed, in a way |
| 2021-08-14 | Hidden inclusions, for short |
| 2021-06-16 | Secretly loops in, in a way |
| 2021-04-08 | Hidden addresses, for short |
| 2021-02-03 | Secretly includes on an email |
| 2020-07-12 | Loops in, in a way |
| 2019-10-06 | Includes surreptitiously |
| 2019-07-11 | Covertly drops a line to |
| 2017-04-16 | Emails discreetly |
| 2017-01-08 | Loops in, in a way |
| 2015-03-22 | Secretly adds to emails |