| Answer | Crossword Clue |
|---|---|
| APO | Destination of some mail: Abbr. |
| POSTOFFICEBOX | Destination of some mail |
| ADDR | Mail destination: Abbr. |
| APO | Certain mail destination: Abbr. |
| APO | Abbr. on some mail |
| CERT | Like some mail: Abbr. |
| RFDS | Some mail services: Abbr. |
| RFDS | Some mail designations: Abbr. |
| REG | Like some mail: Abbr. |
| RFDS | Some mail addresses: Abbr. |
| DLO | Where some mail goes: Abbr. |
