| English | eng-000 |
| mail user agent | |
| العربية | arb-000 | خادم البريد |
| 普通话 | cmn-000 | 邮件客户端软件 |
| English | eng-000 | e-mail client |
| français | fra-000 | client de messagerie |
| hrvatski | hrv-000 | korisnički posrednik |
| hrvatski | hrv-000 | korisnički prijenosnik poruka |
| русский | rus-000 | почтовый агент пользователя |