 |
| mail services: 34 phrases in 15 subjects |
| Advertising | 1 |
| Astronautics | 1 |
| Aviation | 3 |
| Business | 2 |
| Computer networks | 2 |
| Economy | 6 |
| Electronics | 1 |
| General | 1 |
| Information technology | 4 |
| Microsoft | 3 |
| Military | 2 |
| Programming | 1 |
| Rail transport | 1 |
| Security systems | 1 |
| Telecommunications | 5 |